The approximate slope of the quadratic function y = 4 + 9x + 3x² when x = 1 is 15
The approximate slope of the quadratic function y = 4 + 9x + 3x² when x = 1 will be calculated thus:
First we will find the derivative with respect to x. This will be:
9 + 6x
Since x = 1
9 + 6x = 9 + 6 = 15
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