select the correct answer. two points located on $overleftrightarrow{jk}$ are $j(1, - 4)$ and $k(-2,8)$…

select the correct answer. two points located on $overleftrightarrow{jk}$ are $j(1, - 4)$ and $k(-2,8)$. what is the slope of $overleftrightarrow{jk}$?\na. -4\nb. -2\nc. $-\frac{1}{4}$\nd. $\frac{1}{4}$\ne. 4

select the correct answer. two points located on $overleftrightarrow{jk}$ are $j(1, - 4)$ and $k(-2,8)$. what is the slope of $overleftrightarrow{jk}$?\na. -4\nb. -2\nc. $-\frac{1}{4}$\nd. $\frac{1}{4}$\ne. 4

Answer

Explanation:

Step1: Recall slope formula

The slope formula between two points $(x_1,y_1)$ and $(x_2,y_2)$ is $m=\frac{y_2 - y_1}{x_2 - x_1}$.

Step2: Identify the coordinates

Here, $x_1 = 1,y_1=-4,x_2=-2,y_2 = 8$.

Step3: Substitute values into formula

$m=\frac{8-(-4)}{-2 - 1}=\frac{8 + 4}{-3}=\frac{12}{-3}=-4$.

Answer:

A. -4