Question

Find an equation of the vertical line through (-7,2)

Answer 1

Hey!

Do you know the slope of a vertical line?

Answer 2

no not really
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Answer 3

You should really note this as its very important.

Vertical lines have undefined slopes
Horizontal lines have a slope of 0

Answer 4

ok

Answer 5

Because we want a vertical line, the equation would be x = # rather than y = #

All we need here is the x value given in the point. What is the given x value?

Answer 6

-7

Answer 7

Good, your equation would be

\(x=-7\)

Confirming this: https://www.desmos.com/calculator/8kwtbhnprt

Answer 8

ok thanks