According to the graph on your graphing tool, what is true about f (x) = StartFraction x Superscript 4 Baseline minus 4 x squared + x Over negative 2 x Superscript 4 Baseline + 18 x squared EndFraction? Check all that apply.

the function makes a strait line horizontally with no x intercept but a y intercept at 9.

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

the answer is 15 to your question

idk