ALGEBRA HELP!

Question

I need help., writing these into function form..

1.) -7x=y=1

2) -4x-2y=-1

3) 6x-5y=1

4) -6x-9y=0

5) -4x+2y=8

 

and how you figured out how to write it in function form.

Answer 1

1)

You have a typo here.

2)

-4x - 2y = -1
-4x + 1 = 2y
2y = -4x + 1
y = -2x + (1/2)
f(x) = -2x + (1/2)

3)

6x - 5y = 1
5y = 6x - 1
y = (6/5)x - (1/5)
f(x) = (6/5)x - (1/5)

4)

-6x - 9y = 0
9y = -6x
y = (-6/9)x
y = (-2/3)x
f(x) = (-2/3)x

5)

-4x + 2y = 8
-2x + y = 4
y = 2x + 4
f(x) = 2x + 4