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Mathematics 9 Online
OpenStudy (ccostello23):

HELP!

OpenStudy (ccostello23):

OpenStudy (3mar):

Could I help you?

OpenStudy (ccostello23):

@3mar yes please

OpenStudy (3mar):

Of course. With my pleasure! You have 5 sections\portions in your question! Let's do one-by-one... ok?

OpenStudy (ccostello23):

okay thank you

OpenStudy (3mar):

Not at all! For the first one: Did you try to plot them?

OpenStudy (ccostello23):

no, would 1 be the first y intercept? idk

OpenStudy (3mar):

Use any way to plot these points...even using your hands and paper and pencil! https://www.desmos.com/calculator

OpenStudy (ccostello23):

ok. How do I plot them?

OpenStudy (3mar):

(1,10) then (2.11.5) then (3,13)

OpenStudy (ccostello23):

okay, h/o please

OpenStudy (3mar):

????

OpenStudy (ccostello23):

I've plotted them. I'm sorry, I had trouble find the line tool.

OpenStudy (3mar):

No problem. What matters is that you got what you are looking for!

OpenStudy (ccostello23):

So, how would I calculate the slope?

OpenStudy (3mar):

by using this formula:

OpenStudy (ccostello23):

How would I calculate it with the three?

OpenStudy (3mar):

Just pick two, dear! Two points are sufficient to calculate the slope and form the equation of the line!

OpenStudy (ccostello23):

Oh ok

OpenStudy (3mar):

Does it make sense now?

OpenStudy (ccostello23):

Yes. To calculate the y intercept what should I do

OpenStudy (ccostello23):

for the slope I got -3/-2

OpenStudy (3mar):

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