Question

What is the solution to the system of equations graphed below?

y = 4x + 11

y = -2x - 1

Answer 1

Explanation:

y = 4x + 11, and y = -2x - 1, so

4x + 11 = -2x - 1

6x + 11 = -1

6x = -12

x = -2

y = 4x+11 = 3

Answer 2

y = 4x + 11

y = -2x - 1

4x + 11 = -2x - 1

4x + 2x = -1 - 11

6x = -12

x = -12/6

x = -2

y = 4x + 11

y = 4(-2) + 11

y = -8 + 11

y=3

Answer is (-2,3).