The function f(x) is shown on the graph.
If f(x) = 0, what is x?

O only
-6 only
-2 1 or 3 only
-6.-2. 1 or 3 only

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

14

step-by-step explanation:

0

step-by-step explanation:

equals the constant of proportionality.

solve for