Use the graph to write a linear that relates y to x

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

On a piece of paper, graph y< x+1. then determine which answer matches the graph you drew.