Question

Q # 4 find the slope of the line through the pair of points A(2, -3), P(2, 9)

Answer 1

The answer is 12/0, which is undefined

Answer 2

The given points are (2, -3) and (2, 9)

The x-component of the two points is the same. Which means the line passing through the given two points is a vertical line and slope of a vertical line is undefined.

You can also validate it using the formula of finding slope.

Slope = (-3-9)/(2-2) = -12/0 = undefined

So, first option is the correct answer.