Pls help! will give brainlist! Which function is represented by this graph?

A. y = - x - 1
B. y = x + 1
C. y = x
D. y = - x

-x

Step-by-step explanation:

Because the graph is going left to right downward you know your x has to be negative.  It passes through (0,0) meaning there is no y intercept because the y intercept is 0.  Therefore the answer is D, y=-x

yes

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