rate of change = 1 15. 4 d. increasing 17. ( ) = − 2 + 4 h x x 3 18. ( ) = −3x + 4 h x Slope = − 2 ; = 4 a. y-intercept a. = −3 ; = 4 3 y-intercept b. Plot the point (0, 4). Use the slope to find an b. Plot the point (0, 4). Use the slope to find an additional point by moving 1 unit to the additional point by moving 3 units to the right and 2 units down. right and 3 units down. −3 c. average rate of change = − c. average rate of change = 2 decreasing d. 3 decreasing d. ( ) = − + 6 p x x ( ) Slope = −1 ; = 6 = 4 a. F x y-intercept 16. b. Plot the point (0, 6). Use the slope to find = 0; = 4 a. y-intercept an additional point by moving 1 unit to the Plot the point (0, 4) and draw a horizontal b. right and 1 unit down. line through it. c. average rate of change = −1 average rate of change = 0 c. d. decreasing constant d. ( ) = 1 − 3 f x x 4 19. −3 a. = 1 ; = y-intercept 4 c. b. Plot the point (0, −3) . Use the slope to find an additional point by moving 4 units to the right and 1 unit up.
15. 16. 17. h ( x ) = −3x + 4 a. = −3 ; y-intercept = 4 b. Plot the point (0, 4). Use the slope to find an additional point by moving 1 unit to the right and 3 units down. c. average rate of change = −3 d. decreasing p ( x ) = − x + 6 a. Slope = −1 ; y-intercept = 6 b. Plot the point (0, 6). Use the slope to find an additional point by moving 1 unit to the right and 1 unit down. c. average rate of change = −1 d. decreasing f ( x ) = 1 x − 3 4 a. = 1 ; y-intercept = −3 4 b. Plot the point (0, −3) . Use the slope to find an additional point by moving 4 units to the right and 1 unit up. 18. 19. c. rate of change = 1 4 d. increasing h ( x ) = − 2 x + 4 3 a. Slope = − 2 ; y-intercept = 4 3 b. Plot the point (0, 4). Use the slope to find an additional point by moving 3 units to the right and 2 units down. c. average rate of change = − 2 3 d. decreasing F ( x ) = 4 a. = 0; y-intercept = 4 b. Plot the point (0, 4) and draw a horizontal line through it. c. average rate of change = 0 d. constant