math1314_test2

# X 3 x 10 8 6 4 2 2 4 6 8 10 y 10 8 6 4 2 2 4 6 8 10 x

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51) x = - 3 x -10 -8 -6 -4 -2 2 4 6 8 10 y 10 8 6 4 2 -2 -4 -6 -8 -10 x -10 -8 -6 -4 -2 2 4 6 8 10 y 10 8 6 4 2 -2 -4 -6 -8 -10 x -10 -8 -6 -4 -2 2 4 6 8 10 y 10 8 6 4 2 -2 -4 -6 -8 -10 x -10 -8 -6 -4 -2 2 4 6 8 10 y 10 8 6 4 2 -2 -4 -6 -8 -10 51) SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Write the equation of the line. 52) Through (1, 7), perpendicular to - 5x + 4y = 23 52) Find the slope and the y - intercept of the line. 53) y = 6x + 10 53) Find an equation of the line satisfying the conditions. Write the equation in slope - intercept form. 54) Through (1, 9); perpendicular to x = 5 54) Find the requested value. 55) f(9) for f(x) = 4x + 1, if x < 1 9x, if 9 x 11 9 - 5x, if x > 11 55) Find the indicated composite for the pair of functions. 56) (f g)(x): f(x) = 3x + 13, g(x) = 4x - 1 56) Write the equation of the line. 57) Vertical, through ( - 2, 2) 57) 8
Find an equation of the line satisfying the conditions. Write the equation in slope - intercept form. 58) Through ( - 6, 5); parallel to - 7x + 5y = 57 58) Use the point - slope form of the linear equation to find an equation of the line with the given slope and passing through the given point. Then write the equation in standard form. 59) Slope 5; through (9, 2) 59) Write a slope - intercept equation for the line with the given slope that contains the given point. 60) m = 4; (5, 7) 60) 9
Answer Key Testname: MATH1314HCCST2 2010 31) Domain: ( - , ); Range: [1, ) 32) x = 10 33) ( - 4, 10) 34) (3, 2) 35) x -10 -5 5 10 y 10 5 -5 -10 36) A 37) x 2 - 3x + 6 + - 5 x + 2
Answer Key Testname: MATH1314HCCST2 2010 38) x 3 + 2x 2 - 3x + 1 39) Yes 40) (x - 6)(x - 2)(x + 6) 41) 1 - i, - 4 42) ±1, ±1/2, ±2, ±4, ±8 43) 3 44) 9x + 8 45) x = 1, x = - 6 46) y = 0 47) y = 5/9 48) None 49) y = x - 10 50) x = 1, x = - 4 51) A 52) y = - 4 5 x - - 39 5 53) Slope: 6; y - intercept: 10 54) y = 9 55) 81 56) 12x + 10 57) x = - 2 58) y = 7 5 x + 67 5 59) 5x - y = 43 60) y = 4x - 13 11
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