Question

What Are The Solutions of The System?


y = x^2 + 3x - 4
y = 2x + 2

A. (–3, 6) and (2, –4)
B. (–3, –4) and (2, 6)
C. (–3, –4) and (–2, –2)
D. no solution

I Think It's B Is That Correct?

Answer 1

let's check B

coordinate 1: (-3, -4)

equation 1: -4 = (-3)^2 + 3(-3) - 4
-4 = 9 - 9 - 4
-4 = -4

equation 2: -4 = 2(-3)+ 2
-4 = -6 + 2
-4 = -4


coordiante 2:(2,6)

eq 1: 6 = 2^2 + 3(2) - 4
6 = 4 + 6 - 4
6 = 6

eq 2: 6 = 2(2) + 2
6 = 4 + 2
6 = 6


THEREFORE B IS RIGHT

Answer 2

That's My Exact Work I Just Needed To Make Sure Because My Brother Was Saying I Was Incorrect :D

Answer 3

well you're right so dont worry haha