Question 325444: I am trying to figure out the solution for y=x^2-4. I came up with 3 plots. they are (0,-4)(-3,0)(2,0). I am being told that (-3,0) is incorrect. I then need to graph it. any help would be appreciated.
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! I am trying to figure out the solution for y=x^2-4. I came up with 3 plots. they are (0,-4)(-3,0)(2,0). I am being told that (-3,0) is incorrect. I then need to graph it. any help would be appreciated.
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How did you get (-3,0) ?
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y = x^2 - 4
x^2 - 4 = 0
(x-2)*(x+2) = 0
x = ± 2
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