Which statement best describes the function below?

f(x) = 2x^2– 3x+1

i believe it is c.y = 9x

rise over run. 9 units up over 1 unit right or 9/1

answer: 177/8

step-by-step explanation:

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

thus, the first answer choice, y = sec x, is the correct one