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 Question from Giovanna, a student: The question says: An average school bus holds 45 people. Show a graph between the relationship of students who need bus transportation and number of buses required?

Giovanna,

If ther are 45 or fewer students then one bus will be sufficient. Once there are 46 students you need a second bus and that will be sufficient until you have 91 students and then a third bus will be required. Hence the graph goes up in steps.

Penny

Giovanna, I hope you realize that this is not trig...

Anyhow, the only tricky bit here is dealing with the fact that both people and buses only come in whole-number quantities. So for 1 person, 2 people... up to 45 people you need exactly 1 bus.

And there should only be points for 0,1,2,... people; the graph should consist of dots, not one or more lines. It starts off a bit like this

Good Hunting!
RD

Giovanna,

RD is correct, I should have plotted dots rather than lines.

Penny

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