Question

Find some ordered pairs of the linear equation 2x+y=4 and plot them how many

such ordered pairs can be found and plotted?

Answer 1

2x+y = 4

y =4-2x

Now to find ordered pairs

let x =0 then y = 4-2(0)= 4-0=4

so ordered pair is (0,4)

Let x =1 y = 4-2(1)= 4-2=2

( 1,2)

let x =-1

y = 4-2(-1)=4+2=6

(-1,6)

so some ordered pairs are (0,4),(1,2),(-1,6)

In this way you can find infinite oredered pairs..