Question

The graph relates the distance traveled by Ali, in miles, and the time taken, in hours.

The table shows the distance traveled by Rafael, in miles, and the time taken, in hours.

Answer 1

Check the picture below.

now, to get Rafael's miles, let's simply get the average rate or namely the slope, and to get the slope of any straight line, we simply need two points off of it, let's use those two in the table of the picture below

`(\stackrel{x_1}{3}~,~\stackrel{y_1}{105})\qquad (\stackrel{x_2}{5}~,~\stackrel{y_2}{175}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{175}-\stackrel{y1}{105}}}{\underset{\textit{\large run}} {\underset{x_2}{5}-\underset{x_1}{3}}} \implies \cfrac{ 70 }{ 2 } \implies \cfrac{35}{1}\qquad \impliedby \cfrac{\textit{35 miles}}{\textit{in 1 hour}}`

Answer 2

30 miles, 35 miles, then the last one would be 5 hours less.

Explanation:

Nothing.