math

Find the slope m of the tangent line to the graph of the function at the given point and determine an equation of the tangent line.

f(x)=7x-5x^2 at (-2,-34)

m = ??
y = ??

.

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  1. f' = 7 - 10 x
    at x = -2
    f'(-2) = 7 -10(-2) = 27 = m

    y = 27 x + b
    -34 = 27(-2) + b
    b = 20

    y = 27 x + 20

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  2. thank you soo much I understand it now!! :)

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  3. You are welcome :)

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