Which ordered pair is not a solution of
y = 4x -9
(-9, 27)
(3, -21)
(-6, 15)I think this one?
(5, -28)
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
To determine which ordered pair is not a solution of the equation y = 4x - 9, substitute the x and y values from each ordered pair into the equation and check if the equation is satisfied.
For the ordered pair (-9, 27):
y = 4x - 9
27 = 4(-9) - 9
27 = -36 - 9
27 = -45
Since 27 does not equal -45, the ordered pair (-9, 27) is not a solution of the equation.
For the ordered pair (3, -21):
y = 4x - 9
-21 = 4(3) - 9
-21 = 12 - 9
-21 = 3
Since -21 does not equal 3, the ordered pair (3, -21) is not a solution of the equation.
For the ordered pair (-6, 15):
y = 4x - 9
15 = 4(-6) - 9
15 = -24 - 9
15 = -33
Since 15 does not equal -33, the ordered pair (-6, 15) is not a solution of the equation.
For the ordered pair (5, -28):
y = 4x - 9
-28 = 4(5) - 9
-28 = 20 - 9
-28 = 11
Since -28 does not equal 11, the ordered pair (5, -28) is not a solution of the equation.
Therefore, the ordered pair (-9, 27) is not a solution of the equation y = 4x - 9.
To determine which ordered pair is not a solution of the equation y = 4x - 9, you can substitute the values from each ordered pair into the equation and check if the equation holds true.
Let's substitute the values from each ordered pair into the equation:
1. For (-9, 27):
Substituting x = -9 and y = 27 into the equation:
27 = 4(-9) - 9
27 = -36 - 9
27 = -45 (The equation does not hold true for this ordered pair)
2. For (3, -21):
Substituting x = 3 and y = -21 into the equation:
-21 = 4(3) - 9
-21 = 12 - 9
-21 = 3 (The equation does not hold true for this ordered pair)
3. For (-6, 15):
Substituting x = -6 and y = 15 into the equation:
15 = 4(-6) - 9
15 = -24 - 9
15 = -33 (The equation does not hold true for this ordered pair)
4. For (5, -28):
Substituting x = 5 and y = -28 into the equation:
-28 = 4(5) - 9
-28 = 20 - 9
-28 = 11 (The equation does not hold true for this ordered pair)
So, none of the given ordered pairs is a solution to the equation y = 4x - 9.