Question

Draw the graphs of 2x-y-1 = 0 and 2x + y = 9; Write down the co-ordinates of the point of intersection of the two lines.

Answer 1

y=2x-1
y= 9-2x
2x-1=9-2x
4x=10
point of intersection: x=5/2

Answer 2

2x + y = 9
2x - y = 1
x = 2.5
y = 4

at ( 2.5 , 4 )

Answer 3

co ordinates is x and y co ordinate