Answer:
Option B is correct.
Unit rate = 0.40 km/min
Step-by-step explanation:
Given : A graph with a line running through coordinates (0,0) and coordinates (75, 30).
Here, y represents the distance traveled in km and x represents the number of minutes.
Find the slope of the line:
Slope(m)= [tex]\frac{change in y-axis}{change in x-axis}[/tex] = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
Given points: (0, 0) and (75, 30)
then;
[tex]m = \frac{30-0}{75-0} = \frac{30}{75} =0.40 km/min [/tex]
Since, unit rate is also the slope of the graph.
Therefore, unit rate(in km/min) = 0.40 km/min