What is the equation of the line tangent to #f(x)=2x^3 - x^2-x # at #x=4#?
1 Answer
Jun 25, 2017
Explanation:
This is what we are given:
For now we need the y-value which can be calculated simply by solving for
Now we take the derivative using the power rule which states:
Keep in mind that the derivative of
Now we plug in our x-value of
This
Now we use the point slope formula which is:
Solve it: