MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Find the zero of the linear function. 1 1 fx 5 11 x A - 5 11 B - 11 5 C 11 5 D 5 11 Graph the equation using the slope and the y - intercept. 2 2 y -

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Find the zero of the linear function. 1) 1) f(x) = 5 + 11 x A) - 5 11 B) - 11 5 C) 11 5 D) 5 11 Graph the equation using the slope and the y - intercept. 2) 2) y = - 2 x + 3 A) B) 1 Chapter 1 Algebra and Trigonometry, 5e Judith Beecher, Judith Penna, Marvin Bittinger ( All Chapters, Original , ) Answers At The End Of Each Chapter 1 / 4

• D) Solve the problem. 3) 3) Suppose the sales of a particular brand of appliance satisfy the relationship S(x) = 150 x + 4700 , where S(x) represents the number of sales in year x, with x = 0 corresponding to 1982. In what year would the sales be 5600 ? A) 19 88 B) 19 89 C) 19 87 D) 19 90 Find the zero of the linear function. 4) 4) f(x) = 5 - 11 x A) - 11 5 B) - 5 11 C) 5 11 D) 11 5 Write an equation in slope - intercept form for the line shown. 5) 5) A) y = - 1 3 x B) y = - 3 x C) y = 3 x D) y = 1 3 x 2 2 / 4

Solve the problem using your calculator. 6) 6) The paired data below consist of the temperatures on randomly chosen days and the amount a certain kind of plant grew (in millimeters). Use a graphing calculator to model the data with a linear function that predicts a plant's growth as a function of temperature. Temp 62 76 50 51 71 46 51 44 79 Growth 36 39 50 13 33 33 17 6 16 A) y = 7.30 + 0.122x B) y = - 14.6 - 0.211x C) y = 14.6 + 0.211x D) y = 7.30 - 0.112x Solve the equation. 7) 7) 7 x + 6 = 3 x - 18 A) - 6 B) - 9 2 C) - 24 D) 6 Solve the problem. 8) 8) To convert a temperature from degrees Celsius to degrees Fahrenheit, you multiply the temperature in degrees Celsius by 1.8 and then add 32 to the result. Express F as a linear function of c. A) F(c) = c - 32 1.8 B) F(c) = 33.8c C) F(c) = 1.8c + 32 D) F(c) = 1.8 + 32c Find the slope of the line containing the given points. 9) 9) ( - 4 , 6 ), ( - 2 , 6 ) A) 2 B) not defined C) - 2 D) 0 Find the center and radius of the circle. 10) x 2 + y 2 = 4 10) A) (0, 0); 4 B) (0, 2 ); 4 C) ( 2 , 2 ); 4 D) (0, 0); 2 3 3 / 4

Express the data in the graph as ordered pairs, letting the first coordinate represent the year and the second coordinate the amount. 11) 11) Total Advertisement Spending for Basketball Tournament $600 326.16 320.6 $500 314.34 316.66 310.8 $400 305.74 $300 $200 $100 2003 2004 2005 2006 2007 2008 Year A) (1, 305.74 ), (2, 310.8 ), (3, 314.34 ),( 4, 316.66 ), (5, 320.6 ), (6, 326.16 ) B) (2003, 310.8 ), (2004, 305.74 ), (2005, 314.34 ), (2006, 320.6 ), (2007, 316.66 ), (2008, 326.16 ) C) ( 305.74 , 2003), ( 310.8 , 2004), ( 314.34 , 2005), ( 316.66 , 2006), ( 320.6 , 2007), ( 326.16 , 2008) D) (2003, 305.74 ), (2004, 310.8 ), (2005, 314.34 ), (2006, 316.66 ), (2007, 320.6 ), (2008, 326.16 ) Plot the two points given by the ordered pairs. 12) 12) A( 3 , 4 ), B( - 4 , - 5 ) 4

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