Explanation:
Hello! Remember you have to write complete questions in order to get good and exact answers. Here you have provided neither the graph nor the equation, so I could help you providing my own graph and equation. From physics, we know that speed, time and distance are related in the following form:
[tex]distance=speed \times time \\ \\ \\ If: \\ \\ d:distance \\ v:speed \\ t:time \\ \\ \\ Then: \\ \\ d=vt[/tex]
So [tex]v[/tex] is the slope of a line that passes through the origin where [tex]d[/tex] matches the y-axis and [tex]t[/tex] matches the x-axis. So we can write:
[tex]y=mx \\ \\ \\ y\rightarrow d \\ \\ m\rightarrow v \\ \\ x\rightarrow t[/tex]
From the graph, we can know that:
[tex]y=40x \\ \\ \\ \text{Because the slope is:} \\ \\ m=\frac{40-0}{1-0}=40[/tex]
And the equation that I provide is:
[tex]y=60x[/tex]
If both speeds are given in mi/h, then by comparing them, we can say that the speed (rate) of the first car (graph) is 20mi/h less than the speed of the second car (equation)
