Answer:
[tex]y = 15x[/tex]
Step-by-step explanation:
Given
[tex]Rate = 15\ miles/hour[/tex]
[tex]x = time[/tex]
[tex]y = distance[/tex]
Required
Express in terms of y and x
The given rate is a ratio of distance to time.
So:
[tex]Ratio = Distance/Time[/tex]
Substitute values for Distance and Time
[tex]Ratio = y/x[/tex]
Substitute 15 for Ratio
[tex]15 = y/x[/tex]
Cross Multiply
[tex]y = 15x[/tex]
Hence: the situation is represented by [tex]y = 15x[/tex]