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Mathematics 13 Online
OpenStudy (anonymous):

How to tell the slope?

OpenStudy (anonymous):

I had a question where it showed me different forms of equations and it asked me to tell which one had the highest slope but I don't know how to tell the slope when it shows something like this. Also, would it be possible to know the y-intercept from this graph?

OpenStudy (anonymous):

f(x)=mx+b

OpenStudy (anonymous):

When I do it that way, and I substitute the numbers in, it gives me a different slope for each equation. 2 for the first, 3 for the second, and then 3.3 for the third. I'm confused

terenzreignz (terenzreignz):

Hi there. Looks like you've been here a while. Could you maybe show me what the question looks like, originally? ^_^

OpenStudy (anonymous):

Oh, sure. One sec

OpenStudy (anonymous):

I guessed the answer that I thought was best and I got it correct but for future reference, I want to know how to do this

terenzreignz (terenzreignz):

Heh. Great guessing. But we are agreed that good hunches aren't the most reliable tool when it comes to actual exams. That's what experience (and OS lol) is for. Without further ado, let's get started ^^

terenzreignz (terenzreignz):

You know, of course, the slope-intercept form of a line? y = mx + b This was mentioned to you earlier.

OpenStudy (anonymous):

Thank you

terenzreignz (terenzreignz):

You *do* know it, then? y = mx + b form?

OpenStudy (anonymous):

I know that the slope for g(x) is 10 and the slope for h(x) is 1 so all I need help with is f(x).

OpenStudy (anonymous):

Oh sorry, lost connection, didnt see you reply

OpenStudy (anonymous):

Yes, I do know slope intercept form

terenzreignz (terenzreignz):

Oh. Good ^^ I *am* sorry if I underestimated you, though. I assure you no offense was meant :) So from what I understand, you need to know how to get the slope if you're just given a mess of points, am I right?

OpenStudy (anonymous):

Yes

terenzreignz (terenzreignz):

Well, it's actually quite easy. But don't take my word for it, try it yourself ^^ First, take any two points from the set you're given. (You're given three). Have you chosen your pair of points? Tell me which. It doesn't matter which two you pick, you should arrive at the same slope.

OpenStudy (anonymous):

Oh, so wait a second. The f(x) is y, then? If that's the point, then I know the rest xD I just thought it was referring to something else.

terenzreignz (terenzreignz):

Duly noted. For good measure, what's the slope of the line f(x)? ^^

OpenStudy (anonymous):

4

terenzreignz (terenzreignz):

Well, looks like you didn't need my help after all :> If you do, give me a holler, maybe I can help :D My name is Kurt. See you around ^_^

OpenStudy (anonymous):

Thanks ^^

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