Question

Find the slope of the line that passes through points (-1, -10) and (-1, -2)

Answer 1

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Explanation:

`\boxed{slope = (y1 - y2)/(x1- x2) }`

☆ (x₁, y₁) is the 1st coordinate and (x₂, y₂) is the 2nd coordinate.

Slope of the line

`= ( - 2 - ( - 10))/( - 1 - ( - 1))`

`= (8)/(0)`

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Notice that the 2 points have the same x-coordinate of -1, which means that the line is a vertical line. Vertical lines have an undefined slope.