Question

It costs $35 to join a gym. The monthly fee is $25. Write and graph and equation in two variables that represents the total cost of the gym membership.

Answer 1

X represents the number of months.

$35 is the initial cost and for every month, you’re adding $25.

Using slope intercept form (y = mx + b), we can substitute m and b.

y = 25x + 35

Answer 2

35 + 25x = y

x      y     ( x,  y)
1     60    (1, 60)
2     85    ( 2, 85)
3     110   (3, 110)
4     135   ( 4, 135)


Cost $---140
          ---130
           --120
          ---110
          ---100
            ---90
           ----80
            ---70
            ---60

Bottom Along Graph

1  2  3  4  5  6 = # of Months



Hope this Helps!!!!!