I do not know haw to start it.

Rewrite ^3 sqrt 27x-81-5 to make it easy to graph a translation. Describe the graph.

iragen [17]

First we have to rewrite this function.Instead of :^3 sqrt (...) we can write : (...)^(1/3).
f ( x ) = ( 27 x - 81 ) ^(1/3) - 5 = ( 27 * ( x - 3 ) ) ^(1/3) - 5 = = 3 * ( x - 3 )^(1/3) - 5 And this makes it easy to graph a translation.The parent function is y = x^(1/3). The zero of this function is ( 0, 0 ).
Then it will be stretched vertically by a factor of 2 and translated: 3 units right and 5 units down.

8 0

3 years ago

Identify as a direct variation, inverse variation or neither. The number of tons of coal burned by an old coal burning locomotiv

Lynna [10]

The answer for the question shown above is the first option, which is:
- Direct.

The explanation is shown below:
1. The problem says that The number of tons of coal varies as the number of hours.
2. Therefore, you can write the following equation:
number of tons:x
number of hours:y
x=ky
Where k is the constant of variation.
3. Therere the variation is direct.

5 0

3 years ago

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Please include answer and explanation :))

Fiesta28 [93]

Answer:

Domain={2,5,8}

Range={1,3,6}

Function: YES

Step-by-step explanation:

The Domain of a Function

Is the set of values the input variable x takes.

Range of a Function

It's the set of values the output function takes when x moves into the function's domain.

A function is a relation between an input and an output set of values with the condition that every element in the domain relates only with one element in the range.

Following the definitions above, the domain of the relationship is the set of input values:

Domain={2,5,8}

The range is the set of output values:

Range={1,3,6}

Since each element in the input set is related only to one element in the range, the given relationship is a function.

Answers:

Domain={2,5,8}

Range={1,3,6}

Function: YES

4 0

3 years ago

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