Question

Graph the two equations to solve the system. What is the solution?

y = 2x - 4 and 2x + 3y = -12
A. (0, -4)
B. (4, 4)
C. no solution
D. infinitely many solutions

Answer 1

You can graph it, or you can just solve it algebraically:

y = 2x - 4
y = (-12 - 2x)/3

y = y

3(2x-4) = -12 - 2x
6x - 12 = -12 - 2x

8x = 0
x = 0/8
x = 0
y = -4

Answer 2

(0,-4) is d solution

Answer 3

thank you

Answer 4

Plot attached.