Let fx7 using the definition of the derivative show that

Question

Question: 1. Let f(x)=7. Using the definition of the derivative, show that f'(x)=0 for all values of x.

2. Let f(x) = 17x+11. Use the definition of the derivative to calculate f'(x).

3. The graph of y = x³ - 9x² - 16x + 1 has a slope of 5 at two points. Find the coordinates of the points.