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use the equation of a line formula y=mx+b
where m is the slope and b is the y-intercept
find the equation for the first line
Ok. I'm working on it
@10115658 Y= -3x + 9
@10115658 Thank you. I think I have figured it out.
sorry, i was afk. give me a sec
I got y=-3x+6
How did you get the 6?
y=-3x+b plug in a point and solve for b
I think I got it, b/c I lost you for a sec
ok, tell me what your answer is and i'll see what i get
ok, I figured it out
I'm trying to solve still.
I think it's 3. What do you think it is?
what is 3?
you should get a point x,y
thats not what i got for x
I'll try again with a point.
Do you want me to show you how i got to my answer?
ok, so i found the equation for the first line as y=-3x+6, which i showed you previously
the equation for the second line is y=2x+1, using the same method as the equation for the first line
now we need to find what x and y are
so we replace y in the first equation with 2x+1 and solve for x
Ok I was trying to figure out x and y too.
solving for x i got x=1
Then replace x with 1 in one of the equations to find y
so the point is (1,3)
Do you agree with the answer?
Ok, but wouldn't be 9 though,b/c of the y-intercept.
B I mean
what do you mean? are you talking about the equation for the first line?
ok, theres an easy way to see if the equation is correct or not
so you think the equation is y=-3x+9 correct?
ok, so you plug in a point and see if both sides of the equation are equal
lets plug in -1,9
does 3(-1)+9 equal 9?
so that equation is incorrect lets try my equation
Yeah lets try it
9=9 so the equation works
Yeah the equation works
so you understand now?
Yes thank you for helping me. I gave you a medal and became a fan.
thats a nice visual representation
It is. It helped.
Yeah thanks. I appreciate it.