SOLUTION: i don't get how to do it i asked all my friends and my mom and dad and they can't explain it to me and i need help fast cause my math paper is due tomorrow and i need to know to do

Algebra ->  Linear-equations -> SOLUTION: i don't get how to do it i asked all my friends and my mom and dad and they can't explain it to me and i need help fast cause my math paper is due tomorrow and i need to know to do      Log On


   

Question 31061This question is from textbook Pre-Algebra
: i don't get how to do it i asked all my friends and my mom and dad and they can't explain it to me and i need help fast cause my math paper is due tomorrow and i need to know to do it ok here the question:
Write the equation in function form. Then fraph the equation
y-x=-1
and
8x+2y=-4 This question is from textbook Pre-Algebra

Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Write in function form:
y-x+=+-1 First rewrite the equation in terms of y.
y+=+x-1 Now here y is a function of x so you can replace the y with f(x) to get:
f%28x%29+=+x-1 Now it's in function form. Red line on the graph.
Similarly:
8x%2B2y+=+-4 Rewrite the equation in terms of y.
y+=+-4x-2 and again, you can replace the y with f(x) to get:
f%28x%29+=+-4x-2 Green line on the graph.
Now we can fraph...oops...I mean graph the equations:
graph%28300%2C200%2C-5%2C5%2C-5%2C5%2Cx-1%2C-4x-2%29