Question

Solve graphically x = 4 and 3x - 2y = 10. Write down the co-ordinates of the point of intersection of the two lines.

Answer 1

12 - 2y = 10
2y = 2
y=1

( 4 , 1 )

Answer 2

3x-2y=10,
3(4)-2y=10
12-2y=10
12-10=2y
2=2y
y=1
therefore the co ordinates are (4,1).