Question

Miles per Gallon (dent variable?

What is the dependent variable?

At what speed is the F-150 most fuel efficient?

At what speed is the F-150 most fuel efficient?

Answer 1

your answers are correct for dependent and independent variables

25 mph

Explanation:

The independent variable is identified by the title on the horizontal axis.

The dependent variable is identified by the title on the vertical axis.

The F-150 is most fuel-efficient where its miles per gallon is highest. The peak of that curve appears to be at about 25 miles per hour.