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2 years ago

If (3, y) lies on the graph of y = -(2x), then y = 1/8 -6 -8

Mathematics

2 answers:

Wittaler [7]2 years ago

7 0

Answer:

The answer is -6.

Step-by-step explanation:

To find the value of y in (3, y), plug in 3 for x in y = -(2x) and solve for y.

y = -(2(3))

y = -6

y = -6, so the answer is -6.

masya89 [10]2 years ago

5 0

Answer:

-8

Step-by-step explanation:

I think the equation you want is y=-(2^x) because if you meant what you put originally the first guy is right.

What you do is take 2^3 which equals 8 and then you have the negative left which gets you to -8. I probably explained this terribly and I am sorry.

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Find the domain of the rational expression: x-3/2x-8

miss Akunina [59]

Answer:

$\huge\boxed{x\neq4\to x\in\mathbb{R}\backslash\{4\}}$

Step-by-step explanation:

$\dfrac{x-3}{2x-8}$

We know: the denominator must be different than 0.

Therefore

$2x-8\neq0$ add 8 to both sides

$2x-8+8\neq0+8$

$2x\neq8$ divide both sides by 2

$\dfrac{2x}{2}=\dfrac{8}{2}\\\\x\neq4$

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Answer:

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Step-by-step explanation:

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mote1985 [20]

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Answer:

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