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THIS IS TIMED AND I NEED HELP!!!
Which represents the solution(s) of the graphed system of equations, y = x2 + 2x – 3 and y = x – 1? (1, 0) and (0, –1) (–2, –3) and (1, 0) (0, –3) and (1, 0) (–3, –2) and (0, 1)

Respuesta :

texaschic101
y = x^2 + 2x - 3
y = x - 1

x^2 + 2x - 3 = x - 1
x^2 + 2x - x - 3 + 1 = 0
x^2 + x - 2 = 0
(x + 2)(x - 1) = 0

x + 2 = 0           y = x - 1
x = -2                y = -2 - 1
                         y = -3
 
x - 1 = 0            y = x - 1
x = 1                 y = 1 - 1
                         y = 0

ur solutions are : (-2,-3) and (1,0)

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