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Mathematics 12 Online
OpenStudy (anonymous):

[QUICK AND EASY MEDALS #6] (Mathletes Welcome) Help with Solving a System from Points http://i.imgur.com/l5MJ88K.png

OpenStudy (mathmagician2201):

You are going to need to use the slope formula to start. Do you know this?

OpenStudy (anonymous):

Yes

OpenStudy (anonymous):

Just a bit rusty,

OpenStudy (mathmagician2201):

Cool. do this for the points, and you get your slop. m=y2-y1/x2-x1 y and x are the points, respectively.

OpenStudy (mathmagician2201):

So, the next thing you do after that is figure out the y - intercept.

OpenStudy (anonymous):

The slope would be 2, correct?

OpenStudy (mathmagician2201):

This is made easy because there is a point with x as zero. The y coordinate the you find next to it is the y intercept. Let me see...

OpenStudy (mathmagician2201):

This is for the second line, the y intercept. I'm checking your slope. Which line?

OpenStudy (anonymous):

Oh, I was doing it for line 1.

OpenStudy (mathmagician2201):

Ok.

OpenStudy (mathmagician2201):

Very close. It would be 1/2.

OpenStudy (anonymous):

Oh

OpenStudy (mathmagician2201):

(6-4)/2-(-2) =2/4 =1/2

OpenStudy (mathmagician2201):

Then, we dot he same for the other line. m1=1/2 m2=? ? = you tell me. If incorrect, I will explain. If not, sweet!

OpenStudy (anonymous):

let me see

OpenStudy (anonymous):

Is it 3?

OpenStudy (anonymous):

Oh, you left.

OpenStudy (anonymous):

@mathmagician2201

OpenStudy (anonymous):

can someone help me

OpenStudy (mathmagician2201):

Nope

OpenStudy (mathmagician2201):

I'm here now

OpenStudy (anonymous):

im in 6th grade

OpenStudy (mathmagician2201):

Oh! Sorry, didn't mean no to you. You can ask a question at the top left of the screen

OpenStudy (anonymous):

Mathmagician, make a new question with what you need help with.

OpenStudy (anonymous):

I mean emon

OpenStudy (mathmagician2201):

Yes, it's 3

OpenStudy (anonymous):

ok

OpenStudy (mathmagician2201):

Great Job!

OpenStudy (anonymous):

Nice, thanks.

OpenStudy (mathmagician2201):

Your welcome!

OpenStudy (anonymous):

7. Maria wants to cover the box shown below with paper. Which of the following could be the dimensions of the paper so that Maria has enough to cover the box, including the ends, with a little left. Here is the pic: http://prntscr.com/aox238

OpenStudy (anonymous):

What is the next step, mathmagician, or is that it, :|

OpenStudy (mathmagician2201):

Hmm. I'll brb

OpenStudy (anonymous):

Gotcha

OpenStudy (anonymous):

@Emonilikespie Make a new question, you're in an 8th grade question currently.

OpenStudy (mathmagician2201):

Alright im back.

OpenStudy (mathmagician2201):

Let's see

OpenStudy (mathmagician2201):

You have the y - intercept for line two

OpenStudy (anonymous):

8th grade?

OpenStudy (anonymous):

that was the question that was hard

OpenStudy (mathmagician2201):

it's 4. So the equation for line 2 is y = 3x + 4

OpenStudy (anonymous):

Where did the 3 come from? Sorry, haha.

OpenStudy (mathmagician2201):

Then, find the y intercept for line 1 by putting in 0 for x at this point

OpenStudy (anonymous):

Is the y intercept 2?

OpenStudy (mathmagician2201):

No! Actually, plug in th values for y and x into the equation we already have, y = 1/2x + b and use algebra to find your answer.

OpenStudy (mathmagician2201):

Sorry!

OpenStudy (anonymous):

is the question to hard

OpenStudy (mathmagician2201):

Emon. Why are you in here? I though you were in 6th grade

OpenStudy (anonymous):

yea i am

OpenStudy (mathmagician2201):

It's an 8th grade question, and it's pretty much done

OpenStudy (mathmagician2201):

So Rev. You got the answer for the y - intercept?

OpenStudy (anonymous):

do u know anyone who could help

OpenStudy (mathmagician2201):

Yes! I will. Go make a question and I will help. I will not do it out of another thread, though.

OpenStudy (anonymous):

ok on the ask a question slot thing

OpenStudy (mathmagician2201):

Top left where it says "ask a question..."

OpenStudy (anonymous):

ok

OpenStudy (mathmagician2201):

Cool.

OpenStudy (anonymous):

Help finish, mathmagician went offline.

OpenStudy (anonymous):

Still a bit confused lol.

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