TABLE OF CONTENTS
Let f(x) = 4x + 2. What is f'(x)?
Remember that "derivative" means "slope." Since a straight line has a constant slope (the slope is the same everywhere), the slope of the line is the derivative of the line. In this case, f(x) = 4x + 2 has a slope of 4, therefore f'(x) = 4.
Make it rain.