Don leaves home at 2 pm. 50
He drives 45 miles from home in
45
the first hour.
40
He stops for 90 minutes.
35
He then drives home at an average
30
speed of 15 mph.
25
Distance
from 20
Draw a distance-time graph
home
to show Don's journey.

Please find the attached traced distance time graph

Step-by-step explanation:

The given parameters are;

The time at the start of Don's journey = 2 pm.

The distance Don drives one hour after leaving home = 45 miles

The speed (Distance/time) Don drove during that time = 45/1 = 45 mph

The time at which Don first stop driving = 2 pm + 1 hour = 3 pm

Don then stops for 90 minutes

The time after the duration at which Don stops driving = 3 pm + 90 minutes = 3 pm + 1.5 hours = 4.30 pm

At 4.30 pm. Don then starts driving home at 15 mph

The distance from Don's home from where Don stopped is 45 miles, therefore;

Time (Distance/speed) for Don to get home = 45 miles/15 mph = 3 hours

Time Don arrived home = 4.30 pm + 3 hour = 7.30 pm.