Answer
a) See the table, equation, and graph below.
b) The line graph will be steeper.
Work Step by Step
a) Table: The table below shows the number of laps that Will and Megan run at the track.
Equation: Let $x$ be the number of laps that Megan runs and $y$ be the number of laps that Will runs. Since Will has run 6 laps before Megan started running, and they run at the same pace, then the relationship of the number of laps they ran is
$$
y=x+6
$$
Graph: The graph below shows the number of laps that Will and Megan run at the track.
b) If the age difference were $5$ instead of $2$, the graph would show a line with a steeper inclination.