Question 12985
hmm it goes this way....
the idea first is to get a combined equation of the two either by adding them or subtracting them like...:
i can easily subtract the two equations:
(1) x-4y=-2
(2) x+2y=4
subtracting will get us free from one variable 'x' cancelled out.
+x-4y=-2
+x+2y=4
(-)
__________
-6y=-6
6y=6
y=1
okkkk now v get the value of y as 1.
we cud put y's value in either of the equation to get the value of 'x'
e.g i put it in (1)
x-4y=-2
put y=1
x-4(1)=-2
x-4=-2
x=-2+4
x=2
so the intersecting points are (x,y)=(2,1)