suppphalfyyy
Sep 23, 2009, 04:33 PM
2x + Y = 5
x - Y + -2
can anyone figure this out ?
ArcSine
Sep 24, 2009, 05:39 AM
They are the equations of two straight lines. From your title, it sounds like you're to graph the lines and estimate the solution visually.
Draw a standard XY graph.
Starting with the first equation...
Set X = 0, and solve for Y. Draw a dot on the Y-axis for this point. (I'll give you this one: it's 5).
Then set Y = 0 in the equation, and solve for X. Draw a dot on the X-axis for this point.
Use a ruler to draw the line through these two points.
Repeat for the second linear equation.
The solution is the point where the two lines intersect.
Unknown008
Sep 24, 2009, 09:48 AM
2x + Y = 5
x - Y + -2
can anyone figure this out ?
I guess that the second one is : x - y = -2
Draw the graph like ArcSine said, and estimate your solution.
Tell us what you got please. You should have... (1, -3)