Question

what is the unit rate of the line in this graph?
o 2
o -2
o $\frac{-1}{2}$
o $\frac{1}{2}$

Explanation:

Step1: Recall slope - unit rate relation

Unit rate is slope of line.

Step2: Select two points on line

Let's take $(0,0)$ and $(2,1)$.

Step3: Use slope formula

Slope $m=\frac{y_2 - y_1}{x_2 - x_1}=\frac{1 - 0}{2 - 0}=\frac{1}{2}$.

Answer:

D. $\frac{1}{2}$