help me convert the following to y=mx+b?

yup! sure! why not, as long as i can help…

here:

y= mx + b

the given is in standard form: Ax + By = C

where it is 2x + y -1 = 0

so, we are just going to transpose 2x and -1 to the right side which is originally on the left side of the equation…so we are going to have:

y= -2x + 1

where the original sign of 2x and -1 to its opposite which becomes -2x and +1 as you can see on the answer.

but, to make you understand better. you can also use this to eliminate 2x and -1 from the left side:

2x + y -1 = 0

2x -2x + y -1 +1 = -2x + 1

cancel out 2x – 2x and -1 +1 on the left side because it will equal to 0.

so:

y = -2x + 1

as you can see, what we have added or subtracted on the left side, the same on the right side….

you can have lessons here:

click on ’em to help you understand:

http://mathforum.org/library/drmath/view/52883.html

http://au.answers.yahoo.com/question/index?qid=20061203175045AAS6MyU

http://courses.wccnet.edu/~palay/precalc/22mt01.htm

bring y by itself. start by subtracted 2x on oth sides of the equation so you will have y-1=-2x. next do opposite operation for the 1 on both sides and you will have y=-2x+1. there you go. to solve these eqatuions . just do opposite operations by bringing y by itslef

2x + y – 1 = 0

add 1 to both sides to give

2x + y = 1

take away 2x from both sides to give

y = 1 – 2x

you could re-arrange so that its

y = -2x + 1

but it makes no difference really 🙂

2x + y – 1 = 0

2x + y = 1

y = 1 – 2x

y = -2x + 1

Last minute math eh?