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3 years ago

Given the function a(x)=4x−8 with range R: {0,4,8}, which of the following represents the domain, D of function a?

Mathematics

2 answers:

hram777 [196]3 years ago

8 0

the correct option is D

4(2)-8= 0

4(3)-8 = 4

4(4)-8 = 8

cricket20 [7]3 years ago

5 0

Answer:

Option D.

Step-by-step explanation:

The given function is

$a(x)=4x-8$

We need to find the domain of the function for range R:{0,4,8}.

Domain is the set of input values and range is the set of output values.

Substitute a(x)=0 in the given function.

$0=4x-8$

$-4x=-8$

$x=2$

Substitute a(x)=4 in the given function.

$4=4x-8$

$12=4x$

$3=x$

Substitute a(x)=8 in the given function.

$8=4x-8$

$16=4x$

$4=x$

The input values of function for outputs 0, 4 and 8 are 2, 3 and 4 respectively.

Domain = {2,3,4}

Therefore, the correct option is D.

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Explanation:

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4 0

3 years ago

What is the surface area of the pyramid formed from the net shown here? The triangles are equilateral, and each triangle has a h

azamat

Answer:

62.4 square centimeters

Step-by-step explanation:

The picture of the question in the attached figure

we know that

The surface area of the triangular pyramid is equal to the area of the triangular base plus the area of its three lateral triangular faces

In this problem the triangles are equilateral, that means, the

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we have

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3 years ago

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Rashid [163]

Answer:

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Step-by-step explanation:

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