Question

The pair of Intersecting lines in the following are.
A. x-2y=0
3x+4y=20
B. x + 3y = 6
2x - 3y = 1
C. y=2x-2
y = 4x-4
D. x + 2y = 4
2x+4y = 12​

Answer 1

Step-by-step explanation:

A) solution

×ly first equation with 3

3x-6y=0

subtract eq 1 from 2

3x+4y=20

3x-6y=0

=0+10y=20

=>y=2

put y=2 in eq 1

3x+4(2)=0

3x+8=0

3x=-8

x=-8/3

intersecting points (2,-8/3) solve other question also on this method