Question

3x+2y=12
5x-2y=4

Find the cordinates of points where the lines meet the y-axis.​

Answer 1

Explanation:

3x-2y=12......1

3x-2y=12......15x-2y=4.......2

3x-2y=12......15x-2y=4.......2_____________________...add

3x-2y=12......15x-2y=4.......2_____________________...add 3x-2y+5x+2y=12+4

3x-2y=12......15x-2y=4.......2_____________________...add 3x-2y+5x+2y=12+4 3x-2y+5x2y=16

3x-2y=12......15x-2y=4.......2_____________________...add 3x-2y+5x+2y=12+4 3x-2y+5x2y=16 3x+5x=16

3x-2y=12......15x-2y=4.......2_____________________...add 3x-2y+5x+2y=12+4 3x-2y+5x2y=16 3x+5x=16 8x=16

3x-2y=12......15x-2y=4.......2_____________________...add 3x-2y+5x+2y=12+4 3x-2y+5x2y=16 3x+5x=16 8x=16 x=16/8

3x-2y=12......15x-2y=4.......2_____________________...add 3x-2y+5x+2y=12+4 3x-2y+5x2y=16 3x+5x=16 8x=16 x=16/8 x=2

3x-2y=12......15x-2y=4.......2_____________________...add 3x-2y+5x+2y=12+4 3x-2y+5x2y=16 3x+5x=16 8x=16 x=16/8 x=2 now find y

3x-2y=12......15x-2y=4.......2_____________________...add 3x-2y+5x+2y=12+4 3x-2y+5x2y=16 3x+5x=16 8x=16 x=16/8 x=2 now find y 5x+2y=4......2...plug in x

3x-2y=12......15x-2y=4.......2_____________________...add 3x-2y+5x+2y=12+4 3x-2y+5x2y=16 3x+5x=16 8x=16 x=16/8 x=2 now find y 5x+2y=4......2...plug in x 5*2+2y=4

3x-2y=12......15x-2y=4.......2_____________________...add 3x-2y+5x+2y=12+4 3x-2y+5x2y=16 3x+5x=16 8x=16 x=16/8 x=2 now find y 5x+2y=4......2...plug in x 5*2+2y=4 10+2y=4

3x-2y=12......15x-2y=4.......2_____________________...add 3x-2y+5x+2y=12+4 3x-2y+5x2y=16 3x+5x=16 8x=16 x=16/8 x=2 now find y 5x+2y=4......2...plug in x 5*2+2y=4 10+2y=4 2y=4-10

3x-2y=12......15x-2y=4.......2_____________________...add 3x-2y+5x+2y=12+4 3x-2y+5x2y=16 3x+5x=16 8x=16 x=16/8 x=2 now find y 5x+2y=4......2...plug in x 5*2+2y=4 10+2y=4 2y=4-10 2y=-6

3x-2y=12......15x-2y=4.......2_____________________...add 3x-2y+5x+2y=12+4 3x-2y+5x2y=16 3x+5x=16 8x=16 x=16/8 x=2 now find y 5x+2y=4......2...plug in x 5*2+2y=4 10+2y=4 2y=4-10 2y=-6 y=-6/2

3x-2y=12......15x-2y=4.......2_____________________...add 3x-2y+5x+2y=12+4 3x-2y+5x2y=16 3x+5x=16 8x=16 x=16/8 x=2 now find y 5x+2y=4......2...plug in x 5*2+2y=4 10+2y=4 2y=4-10 2y=-6 y=-6/2 y=-3

Answer 2

Answer:

6.-2

Explanation:

when the line meet the y-axis then x=0

so,

i)0+2y=12

y=6

ii)0-2y=4

y=-2