Can anyone help with this problem? The problem is:
Solve the following system of equations graphically.
x + y - 4 = 0
x - y = 0
The solution lies in quadrant _____.
A.I
B.II
C.III
D.IV
I can't figure out how to solve that.
Thanks,
SplitWindowVette
nicknation wrote:SplitWindowVette wrote:Solve the following system of equations graphically.
x + y - 4 = 0
x - y = 0
I can't figure out how to solve that.
solve them for y and then graph
http://www.purplemath.com/modules/graphlin.htm
the answer is where they cross
stapel_eliz wrote:Your instructor might prefer that the slope-intercept form be stated as:
. . . . .
...but your solution and method are fine!
maggiemagnet wrote:Check your answers. Do you have a number of girls that is 20% more than the number of boys? Find 20% of the boys, and then find 80% of this amount. Does this equal 48?