Each input should only have 1 output. Multiple inputs can have the same output, but one input can only correspond to a single output.
Also, if you graph the relation with the input as the x coordinate and output as the y coordinate, you can then conduct a verical line test. Anywhere you draw a vertical line, you should only intersect the curve one time.
Your answer would be 2x^2=4x
also I have a question I need help with, would you mind?
Use Pythagorean identity to find x value and solve using formulas
9 numbers of nickels
13 numbers of quarters
$5125.78. For simple questions like this you can search them on google and find answers very quickly so you dont waste points btw.
