Question

question 1 of 5
two points located on \overleftrightarrow{jk} are j(-1,-9) and k(5,3). what is the slope of \overleftrightarrow{jk}?

a. -2

b. -\frac{1}{2}

c. \frac{1}{2}

d. 2

Explanation:

Step1: Recall slope formula

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

Step2: Assign values to variables

Let $(x_1,y_1)=(-1,-9)$ and $(x_2,y_2)=(5,3)$.

Step3: Substitute into slope formula

$m=\frac{3-(-9)}{5-(-1)}=\frac{3+9}{5+1}=\frac{12}{6}$

Step4: Simplify the fraction

$\frac{12}{6}=2$

Answer:

D. 2