Georgia Online Formative Assessment Resource (GOFAR) AG Algebra Functions Domain
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1 AG Algebra Functions Domain Name: Date: Copyright 2014 by Georgia Department of Education. Items shall not be used in a third party system or displayed publicly. Page: (1 of 21 )
2 1. Which is equivalent to the expression 2. Cori drew a rectangle with expressions that give the length and width, as shown below. What is the difference between the longer side and the shorter side? 3x- 4 3x- 2 3x+ 2 3x Which of the following is equivalent tons3+ n2s? ns(s2+ 1) ns(s2+ n) ns(s2+ s) ns2(s+ n) 4. An 8-inch by 10-inch photograph is being reduced proportionally. The 10-inch side is reduced by x inches. What is the CHANGE in the area in terms of x? Copyright 2014 by Georgia Department of Education. Items shall not be used in a third party system or displayed publicly. Page: (2 of 21 )
3 5. A picture with a frame and its dimensions are shown in this diagram. What is the area, in square inches, of the frame? 6. The area, in square units, of a rectangle is represented by this polynomial. One dimension is units. What is the other dimension, in units, of the rectangle? 7. A shipping company uses cube-shaped boxes with edges that are e centimeters long. The inside of each face of the box is padded with foam that is 2 centimeters thick. What is the usable volume of the inside of the box? Copyright 2014 by Georgia Department of Education. Items shall not be used in a third party system or displayed publicly. Page: (3 of 21 )
4 8. What is the factored form of this polynomial? 2x2 + 5x + 3 (2x + 1)(x + 3) (2x - 1)(x + 3) (2x + 3)(x + 1) (2x + 1)(x + 2) 9. Two functions are graphed on this coordinate plane. For what values of xdoes it appear that is greater than or or 10. This graph shows the functions and Copyright 2014 by Georgia Department of Education. Items shall not be used in a third party system or displayed publicly. Page: (4 of 21 )
5 Based on the graph, which of the following are the best estimates of the solutions of the equation 11. The graphs of the linear function and the quadratic function are shown on this coordinate plane. Which of the following are the best approximate solutions of Copyright 2014 by Georgia Department of Education. Items shall not be used in a third party system or displayed publicly. Page: (5 of 21 )
6 12. The function represents the surface area of a cube that has side length x. This function is a transformation of Which phrase describes this transformation? stretch by a factor of 6 shrink by a factor of 6 shift up of 6 units shift down of 6 units 13. This diagram shows the length of a brace used to support a wall. The equation can be used to determine x, the base of the triangle. Which of the following is equivalent to the equation? 14. What values ofxsatisfyx2+ 2x= 24? - 6, - 4-6, 4 Copyright 2014 by Georgia Department of Education. Items shall not be used in a third party system or displayed publicly. Page: (6 of 21 )
7 6, - 4 6, A quadratic function has a root at Which equation could represent this function? 16. Which equation has no real solutions? 17. What are the solutions of the equation 18. Which of the following is a factor of 6x2-13x+ 5? x+ 1 2x - 1 3x+ 1 Copyright 2014 by Georgia Department of Education. Items shall not be used in a third party system or displayed publicly. Page: (7 of 21 )
8 6x If and what is the value of x? 20. Which expression is a factor of 4x2+ 10x+ 6? 2(x+ 3) 2x+ 3 4(x+ 3) 4x A sky diver uses this equation to determine h, her height in meters above the ground t seconds after jumping from a plane. The sky diver wants to open her parachute when she is at a height of 300 meters above the ground. Approximately how many seconds after the sky diver jumps from the plane should she open her parachute? 12 seconds 14 seconds 16 seconds 26 seconds 22. The floor of a room is rectangular in shape. Its length, x, is 2 feet greater than its width. The floor has an area of 120 square feet. Which equation can be used to determine the length of the floor? Copyright 2014 by Georgia Department of Education. Items shall not be used in a third party system or displayed publicly. Page: (8 of 21 )
9 23. This equation represents d, the distance in meters a ball rolls down a ramp in t seconds. What number of seconds will it take the ball to roll 15 meters down the ramp? 2 seconds 3 seconds 5 seconds 8 seconds 24. Two opposite sides of a square are increased 6 inches in one direction, and the other two sides are increased 4 inches. These increases cause the area to increase by 114 square inches. This equation can be used to determine x, the length of each side of the original square. Which of the following is equivalent to the equation? 25. Which expression is equivalent to Copyright 2014 by Georgia Department of Education. Items shall not be used in a third party system or displayed publicly. Page: (9 of 21 )
10 26. Which equation is equivalent to 27. Solve: x2 - x - 30 = 0 x = 3 and x = -10 x = -5 and x = 6 x = 2 and x = -15 x = 5 and x = Logan works in a factory. Logan uses the formula y = x2 + x to determine how many impurities (y) are in a sample of water at any temperature (x) in degrees Celsius. For one sample of water, Logan found 20 impurities. Which are the possible temperatures for the sample of water? 5 C or -4 C 2 C or -10 C -2 C or 10 C -5 C or 4 C 29. This table shows the relationship between n, the number of consecutive hits made in a video game, and number of points scored. Copyright 2014 by Georgia Department of Education. Items shall not be used in a third party system or displayed publicly. Page: (10 of 21 )
11 Which function best represents this relationship? 30. At a water park, a stream of water is shot into the air from the top of a pole that is 12 feet tall. The function graphed on this coordinate grid represents the path of the stream of water from the top of the pole to the ground. What is the domain of the function that represents the path of the stream of water from the top of the pole to the ground? to to Copyright 2014 by Georgia Department of Education. Items shall not be used in a third party system or displayed publicly. Page: (11 of 21 )
12 to to 31. At a water park, a stream of water is shot into the air from the top of a pole that is 12 feet tall. The fun What is the range of the function that represents the path of the stream of water from the top of the p 32. A function is described below. The function has a maximum point at The function increases at a nonconstant rate for The function decreases at a nonconstant rate for Which function could match this description? Copyright 2014 by Georgia Department of Education. Items shall not be used in a third party system or displayed publicly. Page: (12 of 21 )
13 33. Which function has zeros at 34. This coordinate plane shows the graphs of seven absolute value functions in a family of functions. Each function in the family has roots of and Which equation describes the family of absolute value functions in which k is a real number? Copyright 2014 by Georgia Department of Education. Items shall not be used in a third party system or displayed publicly. Page: (13 of 21 )
14 35. This equation describes the relationship between two quadratic functions. Which of the following could represent the graphs of the two functions? Copyright 2014 by Georgia Department of Education. Items shall not be used in a third party system or displayed publicly. Page: (14 of 21 )
15 36. These two quadratic functions are reflections of each another. Which equation describes the relationship between the two functions? Copyright 2014 by Georgia Department of Education. Items shall not be used in a third party system or displayed publicly. Page: (15 of 21 )
16 37. The graph of a quadratic function, is transformed such that its image, can be described as Which statement describes how the graph of was transformed? It was reflected across the x-axis and shifted 4 units to the right. It was reflected across the x-axis and shifted 4 units to the left. It was reflected across the y-axis and shifted 4 units down. It was reflected across the y-axis and shifted 4 units to the left. 38. This coordinate plane shows the graphs of two quadratic functions. Which equation could show the relationship between the two functions? 39. This graph shows the number of minutes a student spent bike riding during the past 7 days. Copyright 2014 by Georgia Department of Education. Items shall not be used in a third party system or displayed publicly. Page: (16 of 21 )
17 Which of the following is the domain of the graph? 40. This polynomial can be factored such that all the terms in the factors are real and rational. Which polynomial is NOT a factor? 41. Function f is defined by the expression Which function is equivalent to f? Copyright 2014 by Georgia Department of Education. Items shall not be used in a third party system or displayed publicly. Page: (17 of 21 )
18 42. This table lists the coordinates of some points on the graph of a quadratic function. Which of the following describes the location of a zero of the graph of the function? between and between and between and between and Copyright 2014 by Georgia Department of Education. Items shall not be used in a third party system or displayed publicly. Page: (18 of 21 )
19 Answer Key : x ns(s2+ n) (2x + 3)(x + 1) 9. or stretch by a factor of , x x seconds 22. Copyright 2014 by Georgia Department of Education. Items shall not be used in a third party system or displayed publicly. Page: (19 of 21 )
20 23. 3 seconds x = -5 and x = C or 4 C to It was reflected across the x-axis and shifted 4 units to the right. 38. Copyright 2014 by Georgia Department of Education. Items shall not be used in a third party system or displayed publicly. Page: (20 of 21 )
21 between and Copyright 2014 by Georgia Department of Education. Items shall not be used in a third party system or displayed publicly. Page: (21 of 21 )
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