Title: Slopes of Secant and Tangent Lines Pre-Video Questions
Course: Calculus Videos Project > Section: Slopes of Secant and Tangent Lines

Q: The slope of the line tangent to the graph of y=f(x) at the input value x=7 is shown in the graph below. The slope of this tangent line is 1.
- The value of f(x) changes by 1.
- The value of f(x) changes by 1 times 7.
- The value of f(x) changes by 1 divided by 7.
- The value of f(x) changes by 1 times dx.
- The value of f(x) changes by 1 divided by dx.
A: The value of f(x) changes by 1 times dx.

Q: Suppose f'(a) > for >0. Which of the following could be the graph of f?
- I only
- II only
- II and III only
- I and IV only
- III and IV only
A: I and IV only