The graph of f(x) is shown. Over which interval on the x-axis is there a negative rate
of change in the function?
O-2 to -1
O -1.5 to 0.5
O O to 1
O 0.5 to 1.5

i think the answer is true

step-by-step explanation:

yx = 36

step-by-step explanation:

cos f = opposite side/ hypotenuse

cos f = yw / yx

we know cos f = 4/9 and yw =16

4/9 = 16/yx

multiply each side by yx

4/9 yx = 16/ yx * yx

4/9 yx = 16

multiply each side by 9/4

9/4 * 4/9 yx = 16 *9/4

yx = 36

i'm guessing it might be 40.