Question

Complete each ordered pair so that it is a solution of the given linear equation.x - 2y = 3; ( ,4), (1, )

Answer 1

In each of these ordered pairs we have the value of x or the value of y.

For the first one ( , 4) we can replace the value of y = 4 into the equation and solve for x:

`x-2\cdot4=3`
`x-8=3`
`x=3+8=11`

So the first ordered pair is (11,4)

We do something similar for the second ordered pair. We replace the value x = 1 and solve for y:

`1-2y=3`
`1-3=2y`
`y=(1-3)/(2)=(-2)/(2)=-1`

So the second ordered pair is (1,-1)