Question

Im trying to write the slope intercept form equation for x+y=3 and give the y intercept

Answer 1

slope-intercept form is y = mx + b so just transpose x to the other side to isolate y

Answer 2

y=x+-3

Answer 3

not exactly. it should be x that's negative not 3

so you have y = -x + 3

Answer 4

so the 3 is the y intercept then

Answer 5

right

Answer 6

yes , 3 is the y-intercept

when you start with
x+y=3

and you want the y by itself, add -x to both sides:

-x + x + y = -x +3

the -x + x is 0 (you have 1 x and take away 1 x)
you get
y= -x + 3

Answer 7

Thank you