Question

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Answer 1

Direct variation i think.

Answer 2

x1/x2 = y1/y2
or
x1/y1 = x2/y2

Answer 3

Don't you have to have at least two pairs of known X AND Y to proceed?

Answer 4

Yeahh that's why it's confusing. I'm trying to figure it out, but I don't know.

Answer 5

Have you reproduced the question here exactly? Have you left out any other info related to this question?

Answer 6

Any diagram, graph, assumptions anywhere else in the page or previous problem to which this question applies?

Answer 7

Yes, it looks like this question applies to that graph. Just plug in x value to calculate y. plug in y values to calculate x.

Answer 8

I will do the first one:
y = 1200 + 11x
when x = 0, y = 1200 + 11(0) = 1200 feet

Answer 9

yes.

Answer 10

@ranga

Answer 11

y = 1200 + 11x
y = 3000
3000 = 1200 + 11x
subtract 1200 from both sides
1800 = 11x
divide both sides by 11
1800/11 = x
x = 163.64 or you can round it to 164 minutes

Answer 12

Thank you very much!

Answer 13

you are welcome.