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2 years ago

5

Drag the correct description to tell whether the graph represents a function.

1 answer:

Anna007 [38]2 years ago

4 0

Using the function concept, it is found that:

The 1st graph is not a function.

The 2nd and the 3rd graph are functions.

<h3>What is a function?</h3>

In a <em>function</em>, <u>one value of the input can be related to only one value of the output</u>.

In a graph, it means that for each value of x(horizontal axis), there can only be one respective value of y(vertical axis), that is, there cannot be point that are aligned vertically.

In this problem:

On the <em>first </em>graph, there are points that are aligned vertically, for example, when x = -2, y = -2 and y = 2, hence, it is not a function.

On the <em>2nd and on the 3rd graph</em>, there are no points aligned vertically, hence, they are functions.

To learn more about the function concept, you can take a look at brainly.com/question/12463448

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Dmitriy789 [7]

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3 years ago

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The population of rabbits in an area is modeled by the growth equation p(t)=8e^0.26t, where P is in thousands and T is in years.

Elena-2011 [213]

Answer:

4.4

years corresponding to 4 years and 5 months (more or less)

Step-by-step explanation:

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25

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take the natural log of both sides:

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simplify:

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[

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t

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years corresponding to 4 years and 5 months (more or less)

5 0

4 years ago

What is six hundred twenty-nine thousandths written in standard form

-Dominant- [34]

Answer:

0.629

I hope this helps!

4 0

3 years ago

When drawn in standard position, an angle a has a terminal ray that lies in the second quadrant and whose sine is equal to 9/41.

Semenov [28]

Answer:

$\frac{40}{41}$

Step-by-step explanation:

We have the angle in standard post has a sine ratio of

$\frac{9}{41}$

This means the opposite side length of the corresponding right triangle is 9 units and the hypotenuse is 41 units.

Using Pythagoras Theorem, the adjacent side length can be found using:

${x}^{2} + {9}^{2} = {41}^{2}$

This implies that:

${x}^{2} = {41}^{2} - {9}^{2}$

${x}^{2} = 1600$

$x = \pm \sqrt{1600}$

$x = \pm40$

The cosine ratio is adjacent over hypotenuse.

$= \frac{ \pm40}{41}$

Since we are in the second quadrant, the cosine ratio is negative;

$= - \frac{40}{41}$

3 0

3 years ago

Given: f(x)9x+5, find f^-1(x) then state whether f^-1(x) is a function.

Nataly_w [17]

F(x) = 9x + 5
y = 9x + 5
9x = y - 5
x = (y - 5)/9
f^-1(x) = (x - 5)/9

f^-1(x) is a function.

4 0

3 years ago