Sunday
March 26, 2017

Post a New Question

Posted by on .

Which ordered pair is not a solution of
y = 4x -9

(-9, 27)
(3, -21)
(-6, 15)I think this one?
(5, -28)

  • Math7 - ,

    For x = - 9

    y = 4 x - 9 = 4 * ( - 9 ) - 9 = - 36 - 9 = - 45


    For x = 3

    y = 4 x - 9 = 4 * 3 - 9 = 12 - 9 = 3


    For x = - 6

    y = 4 x - 9 = 4 * ( - 6 ) - 9 = - 24 - 9 = - 33


    For x = 5

    y = 4 x - 9 = 4 * 5 - 9 = 20 - 9 = 11



    If youe expression mean :

    y = - 4 x -9

    then

    ( 5 , - 28 ) is not a solution becouse:

    for x = 5

    y = - 4 x -9 = - 4 * 5 - 9 = - 20 - 9 = - 29

  • Math7 - ,

    Thank you!

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question