leahhhh40 leahhhh40

02-01-2021
Mathematics

contestada

Solve the system of equations:
y = 2x
y=x2-3

A. (-1,2) and (3, 2)
B. (-2, -4) and (2, 4)
C. (-2, 1) and (2, 1)
D. (-1, -2) and (3, 6)

Respuesta :

kenlingdad kenlingdad

02-01-2021

Answer:

D. (-1, -2) and (3, 6)

Step-by-step explanation:

y = 2x

y = x² - 3

2x = x² - 3

x² -2x - 3 = 0

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

x = -1 or x = 3

y = -2 or y = 6

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