Question

Kieron is using a quadratic function to find the length and width of a rectangle. He solves his function and finds that

w = −15 and w = 20
Explain how he can interpret his answers in the context of the problem.

Answer 1

Explanation:

The correct value of w is 20 as the width of a rectangle must be positive. A quadratic function always has 2 zeroes and in a case like this the negative one is ignored.