Question

what is the elimination method for the graph y+2x+2=0 and y-4x+4=0​

Answer 1

1 . y+ 2x+ 2 =0 => y + 2x = -2 -–----(3)

2. y- 4x+ 4=0 => y - 4x = -4 ------- (4)

(-) (+) (+)

____________

6x= 2 => x = 1/3

y + 2x = -2

y + 2 * 1/3 = -2

y = -2-2* 1/3 => y = -8/3