A car is traveling at a constant velocity. After two hours the car has traveled 225 miles. Assuming a linear equation fits this situation, what are the ordered pairs that you would use to find the linear equation?

(90, 5) and (5, 225)
(2, 90) and (5, 225)
(2, 90) and (225, 5)
(90, 2) and (225, 5)

Question

A car is traveling at a constant velocity. After two hours the car has traveled 225 miles. Assuming a linear equation fits this situation, what are the ordered pairs that you would use to find the linear equation? 

(90, 5) and (5, 225)
(2, 90) and (5, 225)
(2, 90) and (225, 5)
(90, 2) and (225, 5)

anonymous · Answer

@ParthKohli 
@iGreen

anonymous · Answer

@uri

anonymous · Answer

@aajugdar

igreen · Answer

225 miles in 2 hours..

I don't know where the $'(5, 225)'$ or $'(225, 5)'$ are supposed to come from..

anonymous · Answer

That's all the answer choices. ._.

igreen · Answer

Hmm..a line between two points HAS to be linear.

igreen · Answer

Oh wait..when hours increase..miles increase..

anonymous · Answer

True.

igreen · Answer

So A is wrong.

Lines increase/decrease from left to right.

igreen · Answer

A is decreasing.

igreen · Answer

B has an undefined slope.

igreen · Answer

C is decreasing..

imstuck · Answer

If this were on a graph, the y axis would be the number of hours and the x axis would be the number of miles traveled.  They tell you that in y = 2 hours, the driver is at x = 225.  So you have to find one of your answers up above that dictates a y value of 2 with an x value of 225 (in the same set of parenthesis).  This is not one of your choices so it appears that something went wrong somewhere with either the problem or your translation of it from the original to your post.  There is no answer above that would fit.  The equation for your line is y = 4.5x.  No points up there fit into that equation.

igreen · Answer

Actually B is increasing..I was zoomed out on my graph so much it looked undefined.

A and C are definitely WRONG.

B and D are your only choices.

B is very steep, and D is pretty flat.

igreen · Answer

I would go with B.

Because if you go 225 miles in 2 hours, you're going pretty fast.

anonymous · Answer

It does say Assuming a linear equation fits this situation

anonymous · Answer

B It is.

igreen · Answer

Well you're assuming that y = hours @IMStuck 

If x = hours, I think the answer would point to B.

igreen · Answer

Well if you get this question wrong, take the quiz again, and get the same question, you would know that the answer is D.

anonymous · Answer

your question was solved here check http://openstudy.com/study#/updates/4def6be54c0e8b0bc709d1d8

anonymous · Answer

next time you will know proper method of solving it