HEY GUYS HELP ME OUT HERE algebra

these are the awnser choices
Linear
Quadratic
cubic
Exponential
y=3x^3-5
y=5(3)^x
y= 5x^3- 3
y=3^x
y= 5x^2 + 2

For the equation below, x is the input and y is the output. y = -4x + 3 if the input is -8, then the output is

Show algebraically that f and g are inverse functions f(x)=x^2/-6; g(x)=square root of 2x+12

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number tt of tokens james has is a function of gg, the number of games he plays