Ok, I'm just making sure, but if I had to find the rate of change between one number and another, I just divided them? :O so 110 divided by 50?

Question

anonymous · Answer

2.2?

anonymous · Answer

sorry my question was , was my statment true or false

anonymous · Answer

What do you mean?

amistre64 · Answer

a rate of change is a ratio or proportion that you can calculate between 2 ... things.

amistre64 · Answer

the rate of change between 5 and 7 is rather undefined unless you use a unit of time to compare too; like 2/3sec

anonymous · Answer

Thats confusing, but, like I have a problem that says "find the approximate rate of change between 1970 and 1975." And on the graph, the numbers for those years are 50 and 110. So I divided them like you said? :o

amistre64 · Answer

in a way, yes; but becasue these dont intersect with the (0,0) we can be sure that they are moving in sync like that

it is best to divide the change between them instead

1970 to 1975 is a change of 5
50 to 110 is a change of 60

therefore we can say for certain that the rate of change is 60/5

amistre64 · Answer

becasue they dont intersect at (0,0) we CANT be sure ....

one little letter just changes the whole meaning sodent it

anonymous · Answer

So...what do I do?

amistre64 · Answer

read the post thats 4 above this one.

anonymous · Answer

Oh I didnt see that :P ok thanks

amistre64 · Answer

:)  i was hoping it was something to that effect casue i really dont know how to explain it any simpler

anonymous · Answer

Yeah its confusing :P like I have another one, its rate of change between 1995 and 2000. Im just kinda going with the effect of what you said ...idk if im right, but approximately 2000 divided by 1995 is 1.003, and 690 divided by 600 (the numbers for those years on the graph) is 1.3...so what, 1.003/1.3?? Confusedd :P

kinggeorge · Answer

Basically, what you're doing is finding the slope of a graph where the x-values are years and the y-values are those other number.

slaaibak · Answer

no...

2000 - 1995 = 5

690 - 600 = 90

90 / 5 = 18

kinggeorge · Answer

So if you have two points $(1995, 600)$, and $(2000, 690)$. Now you need to find the slope between those two points.

kinggeorge · Answer

As slaaibak pointed out, the slope would be 18.

anonymous · Answer

Well @KingGeorge we havent learned how to find the slope yet. And that makes sense @slaaibak, thanks :)

anonymous · Answer

Ohkkkayy, I see now. Thanks

kinggeorge · Answer

I suppose not knowing how to find slope would make it harder. :)