Building Quadratic Functions

Question

The altitude of the triangular banner is 4 feet longer than twice it’s base. Define the functions that describe the altitude and base of the triangle, and then use these functions to build an area function of the banner.

Answer 1

Let b = the base

aaltitude = 2b + 4

A = b(2b+ 4)/2

A = b(b + 2)

A = b² + 2b