Math7

posted by .

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!

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Algebra

    Use substitution to determine whether the ordered pair (–2, –3) is a solution of the equation x2 – y = 7. Show some work. Be sure to state your conclusion about whether the ordered pair is a solution or not.
  2. Algebra

    Use substitution to determine whether the ordered pair (– 3, – 2) is a solution of the equation 5x + y2 = –11. Show some work. Be sure to state your conclusion about whether the ordered pair is a solution or not.
  3. math

    Solve the following system using elimination. If a single solution exists, write the solution as an ordered pair. Your answer will be an ordered pair, no solution, or infinitely many solutions. x-3y=5 2x-6y=10
  4. math

    Solve the following system using elimination. If a single solution exists, write the solution as an ordered pair. Your answer will be an ordered pair, no solution, or infinitely many solutions x-y=4 3x-5=2
  5. math

    Solve this system using elimination. If a single solution exists, write the solution as an ordered pair. Your answer will be an ordered pair, no solution, or infinitely many solutions 3a+5b=-19 5a-27b=145
  6. math algebra

    Solve the following system using elimination. If a single solution exists, write the solution as an ordered pair. Your answer will be an ordered pair, no solution, or infinitely many solutions. -a+b=-4 2a-3b=-2
  7. MATH

    Solve this system using elimination. If a single solution exists, write the solution as an ordered pair. Your answer will be an ordered pair, no solution, or infinitely many solutions 2x-y=0 3x+y=5
  8. algebra 1

    Solve this system using elimination. If a single solution exists, write the solution as an ordered pair. Your answer will be an ordered pair, no solution, or infinitely many solutions. 5x=y=15 3x+2y=9
  9. math

    Which ordered pair is not a solution of y = 4x -9 (-9, 27) (3, -21) (-6, 15)I think this one?
  10. Algebra

    2. The table shows the heights in inches of trees after they have been planted. What is the height of a tree that is 64 in. Tall in its pot A. 42 in B. 52 in C. 60 in D. 76 in 3. Which ordered pair is a solution to y=8x A. 0,8 B. -1,8 …

More Similar Questions