3 years ago

What is the domain, range, and if it's a function?

Mathematics

1 answer:

White raven [17]3 years ago

5 0

Answer:

Domain = (-5,5)

Range = (-5,5)

<em>The graph is a function because each domain has only one range.</em>

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If x varies directly with y and x=6 when y=8, find x when y=18.

andrey2020 [161]

Answer:

x = 13.5

Step-by-step explanation:

direct variation

y = kx

substitute x and y to find k

8 = k*6

divide by 6

8/6 =k

4/3 = k

y = 4/3 x

now put in y =18

18 = 4/3 x

multiply by 3/4

18 * 3/4 = 3/4 * 4/3 x

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change to a decimal

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Answer:

Step-by-step explanation:

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3 years ago

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Start with

$-3|2x+6|=-12$

Divide both sides by -3

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If the absolute value of a number is 4, that number can either be 4 or -4: we have the two solutions

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3 years ago

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Black_prince [1.1K]

Answer:

I guess (c) is your answer. thanks!!

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3 years ago

Identify the intervals on which the function x^2 -2x -48 is positive

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Step-by-step explanation:

x² - 2x - 48

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