Answer:Function
Step-by-step explanation:Because each x variable is pointing to a diffrent range
The height of the fifth bounce
80x65%x65%x65%x65%x65%
=9.282325 cm
The regression line equation is

, the value of the slope is shown as constant 16 and it's a positive constant, hence the correlation between the amount of gas used and degree of the days is a POSITIVE correlation.