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tdahna0403
24.08.2019 •
Mathematics
Which ordered pair is a solution of the equation y=-9x+4
a) (10, -86)
b) (-4,-58)
c) ( 6,-41)
d) (-6, 57)
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Ответ:
Option A. is the solution
Step-by-step explanation:
The equation of the line is y = - 9x + 4
We will plug in the values of each ordered pair given in the options. If they satisfy the equation, will be the solution of the eqaution.
Option A.
(10, -86)
-86 = - 9(10) + 4
-86 = -90 + 4
-86 = -86
Therefore, this ordered pair is the solution of the equation.
Option B.
(-4, -58)
-58 = -9(-4) + 4
-58 = 36 + 4
-58 = 40
Not the solution of the equation.
Option C.
(6, -41)
-41 = -9(6) + 4
-41 = -54 + 4
-41 = -50
Not the solution of the equation.
Option D.
(-6, 57)
57 = -9(-6) + 4
57 = 54 + 4
57 = 58
Not the solution of the equation.
Ответ: