Question

Help with number 7. we just started this unit so i'm clueless.. please help!

Answer 1

this is the answer for the question

Answer 2

You first need to isolate the y
4x+9y=-108
9y=-4x-108 (subtract 4x from both sides)
y=-4/9x-12 (divide both sides by 9)
Then, by using the y=mx+b form, we can tell that the y-intercept is -12 so A

Hope this helps