Why do we multiply equations by -1? for example, if you need to re-arrange 2x + y = 3 into the form of (y=mx+ i got y = 3 - 2x but the answer is 2x - 3 (it is multiplied by one.)

The thing is you need to get the equation equal to y so you need to add or substrate any number that is with y.but I don't think that's right.because I got this.

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.

answer: sorry i can't you.

step-by-step explanation: