# Chapter 3 - Section 3.4 - Slope and Rate of Change - Exercise Set - Page 237: 32

undefined slope

#### Work Step by Step

The graph of x=5 has a vertical line with x-intercept 5. Find pair solutions of x=5. We let (x1,y1)=(5,0) and (x2,y2)=(5,1) m=$\frac{1-0}{5-5}$=$\frac{1}{0}$ Since $\frac{1}{0}$ is undefined, the slope of x=5 is undefined

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