Find a function that models the length L of her shadow in terms of her distance d from the base of the lamp.

Question

A woman 5 ft tall is standing near a street lamp that is 14 ft tall

Answer 1

Draw and label of diagram!

Two similar triangles are formed

14 : L + d :: 5 : L

14L = 5(L + d)

14L = 5L + 5d

9L = 5d

L= 5d/9