Question

Please Help 20pts again.

Answer 1

C) (-8,-64)

Explanation:

we have

`7x-y=8`

we know that

If a ordered pair satisfy the linear equation, then the ordered pair is a solution of the linear equation

Verify each case

case A) (2,-22)

Substitute the value of x and the value of y in the linear equation and then compare the results

`7(2)-(-22)=8`

`14+22=8`

`36=8` ----> is not true

therefore

The ordered pair not satisfy the equation

case B) (7,-1)

Substitute the value of x and the value of y in the linear equation and then compare the results

`7(7)-(-1)=8`

`49+1=8`

`50=8` ----> is not true

therefore

The ordered pair not satisfy the equation

case C) (-8,-64)

Substitute the value of x and the value of y in the linear equation and then compare the results

`7(-8)-(-64)=8`

`-56+64=8`

`8=8` ----> is true

therefore

The ordered pair satisfy the equation

case D) (-6,2/7)

Substitute the value of x and the value of y in the linear equation and then compare the results

`7(-6)-(2/7)=8`

`-42-(2/7)=8` -----> is not true

therefore

The ordered pair not satisfy the equation