What are the x and y intercepts and slopes of this equation?

Question

In order to join a dancing club, there is a $30 startup fee and a $4 monthly fee. Write an equation in slope intercept form that models this situation.

Answer 1

Let x = number of months and y = cost

y = 4x + 30

The slope is 4. To find the x-intercept, set y = 0 and solve for x. To find the y-intercept, set x = 0 and solve for y.