Question

How many times will the graph of y = x2 intersect the graph of y = –x2?

Answer 1

\[
x^2=-x^2
\]Solve for \(x\).

Answer 2

Basically, we want \[
(x,y_1) = (x,y_2)
\]And since \(x=x\) is always true, we need \(y_1=y_2\), which in this case is:\[
x^2=-x^2
\]Do you know how to solve this?

Answer 3

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