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Mathematics 18 Online
OpenStudy (anonymous):

What is the slope of the line represented by the equation x = -9?

geerky42 (geerky42):

\[\text{Slope} = m = \dfrac{\Delta y}{\Delta x}\]Since x never change, \(\Delta x = 0\) so undefined.

OpenStudy (anonymous):

It is undefined

geerky42 (geerky42):

Just to make it clear, \(\Delta\) means "change in."

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