Question

The function d(h)=50+45hd(h)=50+45h represents the distance a family traveled, in miles, h hours after they stopped for lunch.

What does the value 45 represent in this situation?

1.Before lunch, the family traveled at a speed of 45 mph.

2.The family drove 45 miles after they stopped for lunch.

3.The family drove 45 miles before they stopped for lunch.

4.After lunch, the family traveled at a speed of 45 mph.

Answer 1

After lunch, the family traveled at a speed of 45 mph.

Answer 2

Given the function d(h)=50+45 represents the distance a family traveled, in miles, h hours after they stopped for lunch. The value 45 represents the speed they are traveling in miles per hour. So if the function will be graph, the 45 represents the slope of the line.