Question

Find the slope of the line passing through each of the following pairs of points. b (−3, 9), (−3, −5)

Answer 1

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have:

$(-3,\ 9)\to x_1=-3,\ y_1=9\\(-3,\ -5)\to x_2=-3,\ y_2=9$

Substitute:

$m=\dfrac{-5-9}{-3-(-3)}=\dfrac{-14}{-3+3}=\dfrac{-14}{0}\ \ \ \boxed{!!!!!}$

Answer: The slope is indefinite

Answer 2

Hi there! :)

Step-by-step explanation:

$SLOPE=\frac{Y_2-Y_1}{X_2-X_1}=\frac{RISE}{RUN}$

$\frac{(-5)-9}{(-3)-(-3)}=\frac{-5-9}{-3+3}=\frac{-14}{0}=0$

Undefined.

Slope is 0.

Final answer is 0.

Hope this helps!