Question

(a) Solve graphically: 2x + y =10 and x + y = 4​

Answer 1

Step-by-step explanation:

$x + y = 4 \\ \\ 2x + y = 10 \\ \\ x + x + y = 10 \\ \\ x + 4 = 10 \\ \\ x = 6 \\ \\ y = - 2$

Answer 2

Step-by-step explanation:

2x+y=10 ............... 1

x+y=4 ................ 2

In equation 1

2x+y=10

Put y=2 put y=0

Then x=4 Then x=5

In equation 2

x+y=4

Put y=1 put y=2

Then x=3 Then x=2