Question 966385
Given the function f(x) = -3x2 - 6x - 6, is the point (-1, -3) on the graph of f?

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f(x) = {{{-3*x^2 - 6*x - 6}}}

A point (x,y) is on the graph of f if and only if for the given value of x, f(x) = y.

For the point (-1,-3), x = -1, y = -3.
f(x) = f(-1) = {{{ -3 * (-1)^2 - 6* (-1) - 6}}} = {{{ -3 +6 -6 = -3}}}
so f(x) = y.
Therefore the point (-1,-3) is on the graph of f. Ans is Yes.

Hope you got it!
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