Question

What is the slope of the line that passes through (1, 4) and (1, −3)? (1 point)

Answer 1

Undefined slope

Explanation:

(1, 4) and (1, −3)

Slope:

m=(y2-y1)/(x2-x1)

m=(-3-4)/(1-1)

m=(-7)/0

When 0 is the denominator, there's no slope since it's undefined.

Undefined slope

Answer 2

undefined

Explanation:

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

Slope of the line

`= (4 - ( - 3))/(1 - 1)`

`= (7)/(0)`

(undefined)

Notice that the two points have the same x-coordinate of 1. This means that the line is a vertical line, and vertical lines have undefined slopes.