given the y-intercept of -2 implies you have a second point (0,-2)
so the slope is (-2-1)/(0-3) = -3/-3 = 1
You now have the slope and the y-intercept.
Can you take it from here ?
from the information so far we would have
y = x - 2
or x - y = 2
You can always check if your equation is correct by subbing in the given points.
notice for your equation and using (3,1)
we would get
3+1 = 2 ??
How would you get a positive 2 though?
I had better put my glasses on.
I read your equation as x+y = 2, didn't notice the - sign in front.
thats ok, so would it be 4 ?
I now got -3x+y=-2
no, I thought you understood when I told you it was x-y = 2.
Let's try it again:
(3,1) and (0,-2)
slope = (-2-1)/(0-3) = 1
then using y = mx + b
we have y = (1)x - 2
or -x + y = -2
x - y = 2
ok thanks, sorry!
Answer this Question
Math - Write the slope intercept form of an equation for the line that passes ...
math - i have more than one question so if u no any of the answers please tell ...
Algebra - I know that standard form is Ax+By=C, but I'm not really sure how to ...
Quick math help - My math exam is coming up Friday and I need help!! Can you ...
algebra - could you please see if i have correct answers thanks very much use ...
Math - Write an equation in standard form for the line whose slope is undefined ...
Algebra - Choose 1 set of points from the choices below. Then, solve the problem...
algebra[please check] - in questions 1 and 2, write an equation of the line in ...
math - pls check!!! - Write an equation in point-slope form for the line that ...
Algebra.. - HELP. Problems 4 - 7: Write an equation for the line in point/slope ...