Question

For the linear model, y = -67.9x +679, the distance, in miles y, is a function of time, x, in hours. Use the model to calculate the total distance, in miles, at x = 2 hours.

1. cannot be determined
2. 10 miles
3. 814.8 miles
4. 543.2 miles
Pls help me

Answer 1

543.2

Explanation:

Answer 2

The total distance in miles at x = 2 hours will be 543.2 miles.

Explanation:

Given

Given the linear model function

y = -67.9x +679

where

y represents the distance, in miles y, is a function of time, x, in hours

To determine:

Use the model to calculate the total distance, in miles, at x = 2 hours

substituting x = 2 in the function

y = -67.9x +679

y = -67.9(2) +679

y = -135.8 + 679

y = 543.2 miles

Therefore, the total distance in miles at x = 2 hours will be 543.2 miles.