SOLUTION: The directions say to graph each equation using x- and y- intercepts. The problem is {{{ 7x + 3y = 21 }}} My teacher didn't explain this well and now I'm confused. Your help i

Algebra ->  Graphs -> SOLUTION: The directions say to graph each equation using x- and y- intercepts. The problem is {{{ 7x + 3y = 21 }}} My teacher didn't explain this well and now I'm confused. Your help i      Log On


   



Question 231599: The directions say to graph each equation using x- and y- intercepts.
The problem is +7x+%2B+3y+=+21++
My teacher didn't explain this well and now I'm confused. Your help is appreciated. Thank you.

Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
7x+3y=21
y int is when x=0, (0,7)
x int is when y=0, (3,0)
7(0)+3y=21
y=7
-----------------
7x+3(0)=21
x=3
Does that help?
Bob