Question 140475
f(x)=x^2
dy/dx = 2x
f'(-2) = -4 (slope of y=x^2 at (-2,4)
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Equation of line with m=-4 passing thru (-2,4)
4 = -2*-4 + b
b = -4
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EQUATION:
y = -4x -4
{{{graph(400,300,-10,10,-10,10,x^2,-4x-4)}}}
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Cheers,
Stan H.