rafaela23
contestada

Paul says the slope of the line is zero

Phoebe says the slope of the line is undefined

A. Paul
B. Phoebe

Why did you use that answer?

Paul says the slope of the line is zero Phoebe says the slope of the line is undefined A Paul B Phoebe Why did you use that answer class=

Respuesta :

akposevictor

Answer:

B. Phoebe

Step-by-step explanation:

Let's find the slope of the line that passes through (12, 5) and (12, 9).

Slope = [tex] \frac{y_2 - y_1}{x_2 - x_1} = \frac{9 - 5}{12 - 12} = \frac{4}{0} [/tex] = undefined.

14 can't be divided by zero. Therefore, it is concluded that the slope of the line is undefined.

Therefore, Phoebe is correct.