Find the slope of the line going through the pair of points.
-(2, -9), (2, -1)
A) $- \frac { 9 } { 8 }$
B) 8
C) Undefined
D) $- \frac { 8 } { 9 }$

Question

Find the slope of the line going through the pair of points.
-(2, -9), (2, -1) 
A) $- \frac { 9 } { 8 }$
B) 8
C) Undefined
D) $- \frac { 8 } { 9 }$

Quizplus · Accepted Answer

The slope of a line through points $(x_1, y_1)$ and $(x_2, y_2)$ is given by $\frac{y_2 - y_1}{x_2 - x_1}$. Here, since $x_1 = x_2 = 2$, the denominator of the slope formula is 0, which means the slope is undefined. This indicates a vertical line.

Find the Slope of the Line Going Through the Pair −98- \frac { 9 } { 8 }−89​

Find the Slope of the Line Going Through the Pair $- \frac { 9 } { 8 }$