Question

2x-y=2 4x-y=4 solve algebraically and graphically

Answer 1

GRAPHICAL METHOD
A. 2x-y=2..............1
let x=0
0-y=2
y=-2
point=(0,-2)

let y=0
2x-0=2
2x=2
x=1
point=(1,0)
points of 2x-y=2 = { (0,-2) ; (1,0) }

B. 4x-y=4.................2
let x=0
0-y=4
y=-4
point=(0,-4)

let y=0
4x-0=4
4x=4
x=1
point=(1,0)
points of 4x-y=4 = { (0,-4) ; (1,0) }

ALGEBRAIC METHOD

2x-y=2.............3
4x-y=4..............4
subtract equation 3 from 4

4x-y=4
2x-y=2
-. +. -
2x=2
x=1

put x= 1 in equation 3
2-y=2
-y=0
y=0

Answer 2

Answer:

Step-by-step explanation: