Algebra Lesson 2.4: Special Cases when Slope is Zero or Undefined

Practice Problems:

For questions 1-3 refer to the following graph:

1. Is the slope of the green line zero, undefined, or neither?

2. Is the slope of the red line zero, undefined, or neither?

3. Is the slope of the blue line zero, undefined, or neither?

4. What is the slope of the line \(y = 3\)? (hint: remember that the equation of a line is given by \(y=mx+b\) where m is the slope and \(b\) is the \(y\) intercept).