Question

Find the solution to the system of equations y=2x+1 y=x^2+2x-15

Answer 1

x = 4 OR x = -4

Explanation:

To find the solution, you can set both equations equal to one another:

(1) y=2x+1; (2) y=x^2+2x-15

2x+1 = x^2+2x-15

Then solve for the x-values that make this true.

2x+1 = x^2+2x-15

1 = x^2 - 15

16 = x^2

x = 4 OR x = -4