Question

Can somebody show me how to change an equation that's in standard form to slope and y-intercept form???

Answer 1

Post the problem

Answer 2

Right now Im trying to change 4x-y=-1.

Answer 3

Alright, to get slope intercept form you just wanna isolate y on one side of the equation.

So first you wanna subtract 4x from both sides, right?

Answer 4

Ok so then itd be y=-1 - 4x?

Answer 5

What happened to the negative in front of the y?

Also, since you want the form y=mx+b just subtract the x after the equal sign

-y=-4x-1

now you should do what to finish solving for y?

Answer 6

The negative on teh side with y cancels out the negative on teh other side to make the yintercept form of the equation y=-4x +1?

Answer 7

close, You dont just divide the 1 by -1, you divide everything

so it would change both signs

y=4x+1

Answer 8

Ok.Can you help me change this one to please???-x-y=x-5

Answer 9

Alright, what do you think you should do first?

Answer 10

Add -x to each side.

Answer 11

Yes add x to both sides, so what does that give you?

Answer 12

y=2x-5

Answer 13

right except the y is still negative

-y=2x-5

now one more step

Answer 14

y=2x+5

Answer 15

Again, both are being divided by -1 so it changes both signs

y=-2x+5

Answer 16

Ok thank you!

Answer 17

You're welcome

Answer 18

If you had -x+y=x-5...would the yintercept form of that equation be y=-2x-5 or did I do that wrong?

Answer 19

Close, all you need to do in this one is add an x to both sides

x+x=2x so

y=2x-5

Answer 20

Ok thanks again! :)

Answer 21

If you have the equation 2x-y=-5...would the yintercept form be y=2x-5?? @CalebBeavers

Answer 22

Nope, do it in steps

1: subtract 2x from both sides
2:divide both sides by -1

-y=-2x-5
y=2x+5

Answer 23

Ok Can you help with this one...-2x-y=-1.I know I need to add -2x to both sides first.