Answer:
See the graph with both lines attached
A) From the tables we see the constant change of values in the second column and the initial value is zero.
This represents a proportional relationship for both tables.
B) Revel
- Rate of change is 5 per hour, the equation is:
- y = 5x, where y is cost, x - is the number of hours
Scooters
- Rate of change is 6 per hour, the equation is:
- y = 6x, where y is cost, x - is the number of hours
C) When x = 12,
- y = 5*12 = $60 for Revel
- y = 6*12 = $72 for Scooters
D) The point (4, 24) represents that:
- The cost of 4 hours is $24
E) The second table has confusing titles (days and number of cell phones) but if we assume its same as the first table, then Revel has lower rate as 5 < 6.
Comparing the prices and the graph, Revel has better rate per hour.