SOLUTION: Use graphical method to solve the simultaneous equation x+y=10 and x-y=2 for x from -2 and the scale of 1cm to 1unit on x- axis and 2cm to 2unit on y-axis

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: Use graphical method to solve the simultaneous equation x+y=10 and x-y=2 for x from -2 and the scale of 1cm to 1unit on x- axis and 2cm to 2unit on y-axis      Log On


   

Question 1182501: Use graphical method to solve the simultaneous equation x+y=10 and x-y=2 for x from -2 and the scale of 1cm to 1unit on x-
axis and 2cm to 2unit on y-axis
Found 2 solutions by ikleyn, Boreal:
Answer by ikleyn(52786) About Me  (Show Source):
You can put this solution on YOUR website!
.

This problem  ASSUMES  that you solve it  ON  YOUR  OWN  by using your graphing calculator.


It  DOES  NOT  ASSUME  that the tutors will do it instead of you.



Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
graph%28300%2C300%2C-10%2C10%2C-10%2C10%2C-x%2B10%2Cx-2%29
(6, 4) is the solution.
write as slope intercept form
y=-x+10; slope -1 and y-int of (0, 10)
y=x-2; slope of 1 and y-int of (0, -2)