Asked by Sharon
How do I know if the points (2,-15) lie on a parabola which has the equation y=x^2-6x-7?
Answers
Answered by
Henry
(2,-15), Y = X^2 - 6X -7.
When 2 is plugged into the equation,
you should get Y = -15 which proves that the point is on the parabola.
Y = 2^2 - 6 (2) -7 = -15
When 2 is plugged into the equation,
you should get Y = -15 which proves that the point is on the parabola.
Y = 2^2 - 6 (2) -7 = -15
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