7. At what points does the equation of the line tangent to the curve y=1/x have a slope equal to −1?
8. Compute the derivative of the function f(x) = (x^4 - 2x^2 + 7x+4)^3
9. Given f(x) = 2x²-x, what is the slope of the line tangent to f (x) at the point (3, 15)?
10. Given that the derivative of √ is (√x)' 1/x√x, find the derivative of f(x) = 2√x
11. Suppose f(x) = (4x^3 + 3) (1 − x^2). What is the equation of the line tangent to f at the point (1, 0)?
