A function, f(x), is defined by the equation f(x)=−x2+4x. The graph shows another function, g(x). Both functions have the same x -intercepts.

Both functions have the same y-intercept.

The minimum value of g(x) is greater than the minimum value of f(x).

The maximum value of g(x) is greater than the maximum value of f(x).

the answer is su.k.my? ? co.kc

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