Respuesta :
9514 1404 393
Answer:
2. not direct variation; is "partial variation"
3. Public Mobile
4. highest: Telus (prepaid); lowest: Public Mobile
5. Public Mobile
6. > 200 minutes
7. Plans 1, 2, 3 (with b=0) are direct variation
Step-by-step explanation:
Reference https://brainly.com/question/20889835 for more information
__
2. The "Part B" plan chosen has a y-intercept (b) of 24, so is not direct variation. Here, that qualifies it as "partial variation."
__
3. The lowest rate by far for 600 minutes is offered by Public Mobile (plan 6). That is the same as our hypothesis.
__
4. The highest rate of change (m) is that for Plan 3, Telus (prepaid). Its cost of $0.35 per minute is higher than that for any other plan.
The plan with the lowest slope (m) is Plan 6, Public Mobile, which has zero slope.
__
5. A graph of all the plans is shown in the attachment. For any time over 140 minutes, Plan 6, Public Mobile, is the lowest cost.
__
6. On the graph, the purple line (Rodgers MY5) plan becomes lower cost for more than 200 minutes. Below that time, the green line (Telus prepaid) is lower cost.
__
7. Plans 1, 2, 3 have no cost for zero minutes, so they are all examples of direct variation.
__
8. This is a personal question, so cannot be answered for you. Some of the things usually considered (in no particular order) are ...
on-line user ratings
coverage map
roaming charges
availability of automatic payments
personal experience with the carrier
choice (and cost and features) of compatible phones
data and/or text options (speed, cost, amount available)
