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Algebra Name______________________________ Date________________Period__________ CA 2 Test Review 1. Which of the following represent a direct variation? A. y = 1/2x + 5 B. x = 3y C. 3x +5y = 0 D. y = x/12 D. y = 8/x E. y = x – 2 F. 3y = 2x + 5 G. 3 = xy Use the following equation for questions (A – G) 4x + 8y = 40 A. When y = 0, x = ________ B. When x = 0, y = ________ C. What is the x-intercept? ________ D. What is the y-intercept (b)? _____ E. Graph the equation. F. What is the rate of change (slope, m)? _________ G. Write the equation in y = mx + b (slope-intercept) form. 9. Which of the equations below is equivalent to; 4 x 2y 6 ? A. y 4x 6 B. 1 y x 6 2 C. y 2x 3 D. y 2x 3 10. What is the slope of the line represented by the equation 3 x 5 y 15 ? slope: _________ 11. Find the slope of an equation given the following two points. (-4, 7) (-6, -4) 12. Write an equation that is parallel to 8x + 3y = 7 and passes through point (-4, -8) 15. Which of the following equations is represented by the graph below? Justify/Explain our answer. A. 2 x 3 y 12 B. 2 x 3 y 12 C. 3 x 2y 12 D. 3 x 2y 12 19 .. 20 . 21 .. .. .. Solve 15. 3(x – 3) – 8(5/2x – 5) = 18 16 -12m – 15 = 45 17. Which set of points represents a linear function? A. B. C. D (0, 0) (0, 0) (0, 0) (0, 0) (1, 1) (1, 1) (1, 3) (1, -2) (2, 4) (3, 9) (2, 8) (3, 27) (2, 6) (3, 9) (2, -8) (3, -18)