Please help me with this. I don't get it.

Answer:
What does the red point represent?
After 6 hours of driving, you are 276 miles away from home
Slope is 46
690 miles away after home in 15 hours
Step-by-step explanation:
(0,0)(2,92)
x, y x, y
y1-y2
x1-x2
0-92
0-2
46
10(46)+5(46)=15(46)
15(46)=690