5.2 Review Worksheet (continued)
18. Pauline’s health club has an enrollment fee of $175 and costs $35 per month. Total cost as a function of number of membership months is shown in the graph. a. Write an equation that represents the total cost as a function of months.
Health Club Membership Costs
100 50 150 200 250
0
1 2 3 4
b. Identify the slope and y -intercept and describe their meanings.
Months
c. Find the cost of one year of membership.
5.2.2 Point-Slope Form Graph the line with the given slope that contains the given point.
1 2
3 5
19. slope = −
20. slope =
21. slope = 4; ( − 1, 0)
; ( − 3, 4)
; (1, − 2)
Graph the line described by each equation.
1 2
3 5
22. y − 4 = −
23. y + 2 =
24. y − 0 = 4( x − 1)
( x + 3)
( x − 1)
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