-1 is the answer or your answer is gonna be false
Answer:
Its probably a vortex since its a quadratic funtion
Step-by-step explanation:
solve it through simultaneous equations
for fun guys : 10+6.5x=y
for game bank : 22+3.5x=y
10+6.5x=22+3.5x
3x=12
x=4
cost is same when game rentals =4
that cost= $36