Big Ideas Math Integrated I, 2016
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Big Ideas Math Integrated I, 2016 View details
5. Graphing Linear Equations in Slope-Intercept Form
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Exercise 11 Page 141

Is there a change in x?

Undefined

Practice makes perfect
From the table, we notice that there is no change in x. This means the line is vertical and passes through x=0. Therefore, the slope of this line is undefined. We can verify this by substituting two points from the table into the Slope Formula. m = y_2-y_1/x_2-x_1 Let's use (0,-4) and (0,0).
m = y_2-y_1/x_2-x_1
m=- 4- 0/0- 0
m=-4/0
Division by 0 is undefined, so the slope of the line is undefined.