Answer:
13.8 I believe is the answer
Substitute each value of x, calculate, and if the answer equals to the given value of y, then the point does lie on y = 2x
Point A (1, -1)
y = 2(1)
y = 1
The answer is not y = -1 as given in the question, hence point A does not lie on y = 2x
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Point B (1, 3)
y = 2(1)
y = 2
The answer is not y = 3 as required, hence point B does not lie on y = 2x
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Point C(-2, -4)
y = 2(-2)
y = -4
The answer is y = -4 as required. Hence, point C does lie on y = 2x
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Point D(-2, 4)
y = 2(-2)
y = -4
The answer is not y = 4 as required, so point D does not lie on y = 2x.
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Correct Answer: C
Answer:
Its the middle one. (I did it on imagine math)
Step-by-step explanation:
The line goes straight through the dots.
Answer:
21
Step-by-step explanation:
3x3x3=27
27-6=21
9514 1404 393
Answer:
-12, -21
Step-by-step explanation:
Let x represent the first number. Then the second is x-9. The other relation is ...
4x = 2(x-9) -6
2x = -24 . . . . . subtract 2x, simplify
x = -12
x-9 = -21
The first number is -12; the second number is -21.