What are the solutions of the equation 2x ^ 2 = 2 ? Use a graph of a related function whose roots answer the question.
(1 point)
y
10
5
The solutions of the equation 2x ^ 2 = 2 are x = 1 and x = -1.
Here is a graph of the related function y = 2x ^ 2 - 2:
y
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10 -
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| -
| -
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5 - -
| - - *
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0 - - - - - - - - - - - - - - - - - - - -
-5 -5 5
The graph intersects the x-axis at x = 1 and x = -1, which are the solutions to the equation 2x ^ 2 = 2.