Determine which ordered pair is not a solution of y= -4 , x -9
(-9,27)
(3,-21)
(5,-28)
This is graphing coordinates.
Please help I've been staring at this for 30 minutes so confused.
I know it’s not one of the answer but if you are taking the graphing in the coordinate planes test the answer is (-6, 15)
To determine which ordered pair is not a solution of the equation y = -4x - 9, we need to substitute the x and y values of each ordered pair into the equation and check if the equation holds true.
For the ordered pair (-9, 27):
Substituting x = -9 and y = 27 into the equation, we get:
27 = -4(-9) - 9
27 = 36 - 9
27 = 27
Since the equation holds true for this ordered pair, (-9, 27) is a solution.
For the ordered pair (3, -21):
Substituting x = 3 and y = -21 into the equation, we get:
-21 = -4(3) - 9
-21 = -12 - 9
-21 = -21
Since the equation holds true for this ordered pair, (3, -21) is a solution.
For the ordered pair (5, -28):
Substituting x = 5 and y = -28 into the equation, we get:
-28 = -4(5) - 9
-28 = -20 - 9
-28 = -29
Since the equation does not hold true for this ordered pair, (5, -28) is not a solution.
Therefore, the ordered pair (5, -28) is not a solution of y = -4x - 9.
To determine which ordered pair is not a solution of the equation y = -4(x - 9), you need to substitute the x and y values of each ordered pair into the equation and check if the equation holds true.
Let's go through each ordered pair one by one:
1. (-9, 27):
Substituting x = -9 and y = 27 into the equation, we get:
27 = -4(-9 - 9)
27 = -4(-18)
27 = 72
Since 27 is not equal to 72, (-9, 27) is not a solution of the equation.
2. (3, -21):
Substituting x = 3 and y = -21 into the equation, we get:
-21 = -4(3 - 9)
-21 = -4(-6)
-21 = 24
Since -21 is not equal to 24, (3, -21) is not a solution of the equation.
3. (5, -28):
Substituting x = 5 and y = -28 into the equation, we get:
-28 = -4(5 - 9)
-28 = -4(-4)
-28 = 16
Since -28 is not equal to 16, (5, -28) is not a solution of the equation.
Therefore, the ordered pair that is not a solution of the equation y = -4(x - 9) is (-9, 27).