In order to join a gym there is a $32 start up fee and $15 monthly fee. Write an equation in slope intercept form that models this information.

y = 15x + 32

Step-by-step explanation: 32 is the start up fee meaning that it's the y-intercept because even at 0 months, you have to pay $32. The $15 is the slope because that's what you pay per month... so it's the amount of months (x) multiplied by the dollar amount ($15).

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.

the easiest way to do these would be to solve the equations. if you can solve the equation than you can solve these problems.