Ask a New Question
Menu

Use the linear model to make a prediction. The line of best fit y=0.37x+5

represents the tolls you pay after driving a specific number of miles. What prediction can be made based on this line of best fit?(1 point)
Responses

You can drive for 50 miles and spend less than $20.
You can drive for 50 miles and spend less than $20.

You can spend $42 to drive 100 miles.
You can spend $42 to drive 100 miles.

If you drove 10 miles, you would pay $42.
If you drove 10 miles, you would pay $42.

You can spend less than $30 to go 75 miles.

1 answer

To make predictions using the line of best fit \( y = 0.37x + 5 \), we can plug in the number of miles (x) into the equation to determine the toll (y).

  1. For 50 miles: \[ y = 0.37(50) + 5 = 18.5 + 5 = 23.5 \] Therefore, you can drive for 50 miles and pay $23.50, which is not less than $20.

  2. For 100 miles: \[ y = 0.37(100) + 5 = 37 + 5 = 42 \] Therefore, if you drive 100 miles, you would pay $42. This response is correct.

  3. For 10 miles: \[ y = 0.37(10) + 5 = 3.7 + 5 = 8.7 \] Therefore, if you drove 10 miles, you would pay $8.70, which is not $42.

  4. For 75 miles: \[ y = 0.37(75) + 5 = 27.75 + 5 = 32.75 \] Consequently, you can spend $32.75 to go 75 miles, which means you cannot spend less than $30.

Based on these calculations, the only correct prediction is:

You can spend $42 to drive 100 miles.