The graph shows the equation x = y2. Use the slider for a to move the vertical line on the graph. According to the vertical line test, is this equation a function? Why or why not?

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

Tony is charged $ 50 and additional $0.15 per miles for renting a car. a) represent the cost of renting a car with an equation,and the determine the cost if he drove it70 miles.b) what would be the cost of a car rental if the car was driven 250 miles? show work

What multiplys to be 1 but adds up to be 4