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
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 = ??
.
3 answers
thank you soo much I understand it now!! :)
You are welcome :)