The equation d = 45t + 20 can be used to represent the distance Paul has traveled from work in his car, where d is the distance in miles, and t is the time in hours. Which statement about the equation is true? The y-intercept is 45, meaning that he has driven for 45 minutes.
The slope is 45, and it shows that Paul has traveled 45 miles.
The slope is 20, and it says his average speed is 20 miles per hour.
The y-intercept is 20, and he started 20 miles from work.