Advanced Math practice question

Answer: 6

Set equal: x² − 3 = 2x, so x² − 2x − 3 = (x − 3)(x + 1) = 0, x = 3 or −1. The greater x is 3, and y = 2(3) = 6.

Common wrong answers

If you answered 3

3 is the x-coordinate of that point, not its y-coordinate.

If you answered -2

−2 is the y-coordinate of the OTHER intersection point (x = −1).

If you answered -1

−1 is the smaller x-coordinate.

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