Review 2. Determine the coordinates of the indicated point on the graph. 1) G A) (-3, 0) B) (0, 3) C) (0, -3) D) (3, 0)

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1 Review Determine the coordinates of the indicated point on the graph. D A B E C M G F - L J H K I - 1) G A) (-3, 0) B) (0, 3) C) (0, -3) D) (3, 0) 1) Name the quadrant or ais in which the point lies. ) (9, -3) A) quadrant I B) quadrant II C) quadrant III D) quadrant IV ) Plot the point. 3) (-, 4) 3) A) B)

2 C) D) Determine whether the ordered pair is a solution of the given equation. 4) = -4 - ; (-, 14) A) No B) Yes 4) Graph the equation. ) -9 - = -4 ) A) B)

3 C) D) Find the domain and range. ) {(-8, -), (-4, 1), (11, -), (-, -1), (1, 4)} A) domain = {1, 4, -, -, -4}; range = {-, 1, -1, 11, -8} B) domain = {1, -8, -, 11, -}; range = {-, -1, 1, 4, -4} C) domain = {4, -, 1, -1, -}; range = {1, -8, -4, -, 11} D) domain = {-8, -4, 11, -, 1}; range = {1, -, -1, 4, -} ) Find the domain and the range of the relation. Then determine whether the relation is a function. 7) Input: Output: patient allerg 7) Alice Brad Carl fur dust milk A) domain: {Alice, Brad, Carl} range: {fur, dust, milk} function C) domain: {fur, dust, milk} range: {Alice, Brad, Carl} function B) domain: {Alice, Brad, Carl} range: {fur, dust, milk} not a function D) domain: {fur, dust, milk} range: {Alice, Brad, Carl} not a function 3

4 Use the vertical line test to determine whether the graph is the graph of a function. 8) 8) A) function B) not a function Find the domain and the range of the relation. Use the vertical line test to determine whether the graph is the graph of a function. 9) 9) A) domain: [-4, 4] range: [-9, 9] not a function B) domain: [-9, 9] range: [-4, 4] not a function C) domain: [-4, 4] range: [-9, 9] function D) domain: [-9, 9] range: [-4, 4] function Find the indicated value. ) Find f(-) when f() = -4.8( +.3) A) 33.9 B) 3.3 C) 3.1 D) 34.1 ) Solve. 11) The monthl cost of a certain long distance service is given b the linear function C(t) = 0.04t where C(t) is in dollars and t is the amount of time in minutes called in a month. Find the cost of calling long distance for 80 minutes in a month. A) $1.1 B) $3.0 C) $17.9 D) $ ) 4

5 Graph the function b finding - and -intercepts. 1) + 3 = 1 1) A) B) C) D)

6 Graph the equation. 13) + = 0 13) A) B) C) D)

7 14) + 4 = 0 14) A) B) C) D) Find the slope of the line that goes through the given points. 1) (, 0), (0, 3) 1) A) 3 B) - 3 C) - 3 D) 3 Find the slope of the line. 1) 3 + = 13 A) - 3 B) 3 C) 13 D) 3 1) 7

8 Solve the problem. 17) When a tow truck is called, the cost of the service is given b the linear function = , where is in dollars and is the number of miles the car is towed. Find and interpret the slope and -intercept of the linear equation. A) m = 3; The number of miles the car is towed increases 3 miles for ever dollar spent on the service. b = 80; The tow truck will tow the car 80 miles for no cost. B) m = 3; The cost of the service increases $3 ever mile the car is towed. b = 80; The cost of the service is $80 if the car is not towed. C) m = 80; The cost of the service increases $80 ever mile the car is towed. b = 3; The cost of the service is $3 if the car is not towed. D) m = 80; The number of miles the car is towed increases 80 miles for ever dollar spent on the service. b = 3; The tow truck will tow the car 3 miles for no cost. 17) Find the slope of the line that goes through the given points. 18) (3, -3), (3, 8) A) B) 0 C) - 11 D) undefined 18) Find the slope of the line. 19) + = 0 A) 0 B) - C) D) undefined 19) Determine whether the lines are parallel, perpendicular, or neither. 0) f() = g() = + 7 A) parallel B) perpendicular C) neither 0) Solve the problem. 1) Find the slope of a line perpendicular to the line - - = 3. 1) A) 3 B) C) undefined D) - Use the slope-intercept form of the linear equation to write the equation of the line with the given slope and -intercept. ) Slope ; -intercept (0, 1) ) A) = B) = + 1 C) = D) = - 1 Find an equation of the line. Write the equation in standard form. 3) Through (9, -8) and (1, 4) A) - 4 = 8 B) 4 + = 8 C) + 4 = 8 D) -4 + = 8 3) Find an equation of the line. Write the equation using function notation. 4) Through (3, -4); perpendicular to + = - A) f() = - 11 B) f() = 1-3 C) f() = - 19 D) f() = ) 8

9 Find an equation of the line. Write the equation in standard form. ) Through (3, 3); parallel to 9 + = A) 9 + = 33 B) + 9 = 33 C) - 9 = 33 D) 9 - = 33 ) Determine whether the ordered pair is a solution of the sstem of linear equations. ) (4, -), + =- - = A) Yes B) No ) Solve the sstem b graphing. 7) - = -1 + =-13 7) A) (-, 4) B) (-4, ) C) (-4, -) D) (-, -4) 8) = 0-3 =-1 8) A) (-1, -4) B) (-4, -1) C) (-1, 4) D) (-4, 1) Solve the sstem of equations. 9) + =- =-3 A) (-1, 3) B) (1, 3) C) (1, -3) D) (-1, -3) 9) 9

10 30) - = =-3 A) (-9, 4) B) (8, 4) C) (9, 3) D) 30) 31) - =-34 - =-8 A) (8, ) B) (, 8) C) (-8, ) D) 31) 3) 1 + = 3 + = 3) A) 1, -9 B) - 1, -9 C) 9, 1 D) 1, 9 Solve. 33) One number is 1 less than a second number. Twice the second number is 4 less than 3 times the first. Find the two numbers. A) and B) and 7 C) -7 and - D) 7 and 8 33) 34) Two cars leave a cit and head in the same direction. After hours, the faster car is 18 miles ahead of the slower car. The slower car has traveled 8 miles. Find the speeds of the two cars. A) 30 mph and 33 mph B) 49 mph and mph C) 44 mph and 47 mph D) 47 mph and 0 mph 34) 3) The manager of a bulk foods establishment sells a trail mi for $7 per pound and premium cashews for $1 per pound. The manager wishes to make a 480-pound trail mi-cashew miture that will sell for $8 per pound. How man pounds of each should be used? A) 40 pounds of trail mi B) 0 pounds of trail mi 0 pounds of cashews 40 pounds of cashews C) 40 pounds of trail mi 40 pounds of cashews D) 70 pounds of trail mi pounds of cashews 3) A vendor sells hot dogs and bags of potato chips. A customer bus hot dogs and bags of potato chips for $8.00. Another customer bus 3 hot dogs and 3 bags of potato chips for $7.0. Find the cost of each item. A) $1.0 for a hot dog; $1.00 for a bag of potato chips B) $1.00 for a hot dog; $1.0 for a bag of potato chips C) $1.0 for a hot dog; $1. for a bag of potato chips D) $1.7 for a hot dog; $1. for a bag of potato chips 3) 3) Given the cost function, C(), and the revenue function, R(), find the number of units that must be sold to break even. 37) C() = ,000 37) R() = 000 A) 11 units B) 13 units C) 1 units D) units

11 The figure shows the graphs of the cost and revenue functions for a compan that manufactures and sells binoculars. Use the information in the figure to answer the question. 38) How man binoculars must be produced and sold for the compan to break even? A) 0 binoculars B) 70 binoculars C) 700 binoculars D) 0 binoculars 38) 39) At the break-even point both cost and revenue are what? A) $700 B) $0 C) $0 D) $70 39) Fill in the blank with one of the words or phrases listed below. matri consistent sstem of equations solution inconsistent square 40) A(n) sstem of equations has at least one solution. A) consistent B) inconsistent C) matri D) square 40) 11

12 Answer Ke Testname: REVIEW 1) A ) D 3) C 4) A ) B ) D 7) B 8) B 9) B ) B 11) D 1) C 13) B 14) B 1) C 1) A 17) B 18) D 19) A 0) C 1) B ) B 3) B 4) C ) A ) B 7) D 8) B 9) C 30) C 31) B 3) D 33) B 34) D 3) A 3) A 37) A 38) B 39) C 40) A 1