Question

Solve graphically: 3x+y-11=0 and x-y-1=0

Answer 1

Answer:

x=3

y = 2

Step-by-step explanation:

3x+y-11=0 and x-y-1=0

3x+y -11 = 0

x - y -1 = 0

adding both equations

3x+y -11 + x - y -1 = 0 +0

4x -12 = 0

4x = 12

x = 3

3- y - 1 = 0

y = 2

3x+y -11 = 0

x y

0 11

1 8

2 5

3 2

4 -1

5 -4

x-y-1 = 0

x y

0 -1

1 0

2 1

3 2

4 3

5 4