MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Solve the inequality and graph. Express your answer in interval notation. 1 - 4 -2 - x 6 x 19 - 11 - 2x 1 A B - Q , 8 C - Q , Q D - Q , 0 Provid

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Solve the inequality and graph. Express your answer in interval notation. 1) - 4 ( -2 - x) < 6 x + 19 - 11 - 2x 1) A) + B) ( - Q , 8) C) ( - Q , Q ) D) ( - Q , 0) Provide an appropriate response. 2) Find the slope of the line 3x + 4y = 11. 2) A) 0 B) - 3 4 C) - 4 3 D) 3 4 Solve the problem. Express your answer as an integer or simplified fraction. 3) Solve: x - 2 3 - x - 3 6 = 3 - x 2 - 3 3) A) 3 B) - 3 C) - 2 D) 2 Solve the formula for the specified variable. 4) S = 2 ” rh + 2 ” r 2 for h 4) A) h = 2 ” (S - r) B) h = S - 2 ” r 2 2 ” r C) h = S 2 ” r - 1 D) h = S - r 1 Chapter 1 (Finite Mathematics for Business Economics Life Sciences and Social Sciences 13e Raymond Barnett, Michael Ziegler, Karl Byleen) (Test Bank, Answer at the end of each Chapter) 1 / 4

Determine whether the slope of the line is positive, negative, zero, or undefined. 5) 5) A) undefined B) negative C) positive D) zero Solve the inequality and graph. Express your answer in interval notation. 6) -20 K -3 x + 1 K -8 6) A) ( -7 , -3 ) B) [ 3 , 7 ] C) [ -7 , -3 ] D) ( 3 , 7 ) 2 2 / 4

Provide an appropriate response. 7) Use the graph to find the slope, x - intercept and y - intercept of the line. 7) A) slope = - 1 x - intercept = ( - 7, 0) y - intercept = (0, 7) B) slope = 1 x - intercept = (0, 7) y - intercept = ( - 7, 0) C) slope = 1 x - intercept = (7, 0) y - intercept = (0, - 7) D) slope = - 1 x - intercept = (7, 0) y - intercept = (0, - 7) 8) Find the standard form of the equation of the line passing through the two points. (2, - 6) and ( - 9, 6) 8) A) 12x + 11y = - 42 B) 8x - 15y = - 18 C) - 12x + 11y = - 42 D) - 8x + 15y = - 18 Use the REGRESSION feature on a graphing calculator. 9) For some reason the quality of production decreased as the year progressed at a flash drive manufacturing plant. The following data represent the percentage of defective flash drives produced at the plant in the corresponding month of the year. Month, x 2 3 5 7 8 9 12 % defective, y 1.3 1.6 2.0 2.4 2.6 2.8 3.1 Use the regression equation with values rounded to four decimals to predict the percentage of defective drives in month 6, June. 9) A) 2.0% B) 2.20% C) 2.15% D) 2.3% 3 3 / 4

Provide an appropriate response. 10) Write the equation of the line in the following graph. 10) A) f(x) = 1 3 x - 1 B) f(x) = 1 3 x + 1 C) f(x) = - 1 3 x + 1 D) f(x) = - 1 3 x - 1 Solve the formula for the specified variable. 11) 7x + 10y = 19 for y 11) A) y = 7 10 x + 19 10 B) - 7x - 10y = - 19 C) y = - 7 10 x + 19 10 D) y = 7x - 19 Solve the problem. 12) Find the Celsius temperature (to the nearest degree) when Fahrenheit temperature is 50 ° by solving the equation 50 = 9 5 C + 32, where F is the Fahrenheit temperature (in degrees) and C is the Celsius temperature. 12) A) 10 °C B) 24 °C C) 122 °C D) 96 °C 13) At a local grocery store the demand for ground beef is approximately 50 pounds per week when the price per pound is $4, but is only 40 pounds per week when the price rises to $5.50 per pound. Assuming a linear relationship between the demand x and the price per pound p, express the price as a function of demand. Use this model to predict the demand if the price rises to $5.80 per pound. 13) A) p = 11.5x + - 0.15; 40 pounds B) p = - 0.15x - 11.5; 40 pounds C) p = - 0.15x + 11.5; 38 pounds D) p = 0.15x + 11.5; 38 pounds Write the slope - intercept equation (y = mx + b) for a line with the given characteristics. 14) m = 3, passing through (1, - 2) 14) A) y - 5 = 3x B) y = 5x - 3 C) y = 3x D) y = 3x - 5 4

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