algebra!!!!

Solve the system below.

y=x2-2x-6
y=4x+10

A. (-2, 2)
B. (8, 42)
C. (-2, 2) (8, 42)
D. There is no real solution

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asked by Cami
  1. do you mean
    y = x^2 - 2 x - 6 ????
    if so then
    4 x + 10 = x^2 - 2 x - 6

    x^2 - 6 x - 16 = 0

    (x-8)(x+2) = 0
    x = +8 or x = -2
    C is looking good but check it

    if x = -2 does y = +2 work?
    yes
    if x = +8 does 42 work?
    looks good so C

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    posted by Damon

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