Question

rewrite equation in slope intercept
y=-x+6
x+y=20

Answer 1

Is this a system or are they separately being put into slope-intercept form?

Answer 2

a system i guess

Answer 3

Ok so if it's a system then are you given a certain way to solve like elimination method or substitution method because I can do both and get your answer for you.

Answer 4

it also says determine whether the lines are parallel

Answer 5

Ok, if you're just rewriting the equations in slope-intercept then the asnwer is
y=-x+6 (because it's already in slope-intercept form)
y= -x + 20 (Because you wanted to get why by itself by subtracting X on both sides)
So, since both of the slopes to this are technically -1 (since there is an "invisible " 1 in front of the x) these lines are parallel

If you're solving the system you would use substitutio method because it's easiest
So x(-x+6) =20 because I plugged the first equation into the Y of the second equation since y=-x+6
The math it out
x(-x+6)=20
-2x+6x=20
4x+20
x=5
Plug X back into either equation
y=-(5)+6
y=1

So the answer to solving the equation is (5,1)

Answer 6

thank you

Answer 7

You're welcome