A few days ago
Find tangent line and average of x values?
Suppose that
f(x)= (5x-4)^4
Find an equation for the tangent line to the graph of f at x=2
Tangent line: y= ?
Find the average of all values of x where the tangent line is horizontal. If there are no such values, enter -1000
Average value of x values= ?
Top 1 Answers
A few days ago
Favorite Answer
f'(x)=4(5x-4)^3(5)
=20(5x-4)^3
at x=2, =20(6^3)=20(216)=4320
y=4320x+b
if x=0, y=b
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