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dangina [55]
3 years ago
6

Does this graph represent a function? Why or why not?

Mathematics
2 answers:
myrzilka [38]3 years ago
8 0
<h2>Answer:</h2>

Option: B is the correct answer.

B) Yes, it is a function because it passes the vertical line test.

<h2>Step-by-step explanation:</h2>

A function is a graph in which every element of a set is mapped to a unique element of the other set.

i.e. corresponding to each element of a domain there is only image.

That is the graph passes the vertical line test.

(i.e. any line passing through the domain and parallel to the y-axis must intersect the curve exactly once)

Gnoma [55]3 years ago
5 0

This graph represent a function because it passes the vertical line test(answer B)

<h3>Further explanation </h3>

Set A to set B is said to be a function if each member of set A pairs is exactly one member of set B

So, one value of x is only assigned to one value of y, or one input for one output

A function can be expressed in the form of a cartesian diagram,the set of ordered pairs, or arrow diagrams

If y is a function of x, then y = f (x)

where x is the independent variable and y is the dependent variable

x is the domain and y is the result area or range

There are several forms of function including:

  • 1. linear function
  • 2. quadratic function
  • 3. trigonometric functions
  • 4. polynomial function
  • 5. fraction function etc.

One of the features mentioned above is that the function graph must map each domain member (x value) with one codomain member value y

So the graph is not a function if a graph that has one or more domain members is paired with more than one member of the codomain

Or we can use vertical line test, if vertical line crosses more than one value than the graph is not function

In the graph above, if we draw a straight line parallel to the y axis, then the graph does not intersect at 2 points, so that the graph is a function

<h3>Learn more </h3>

F (x) = x2 + 1 g (x) = 5 - x

brainly.com/question/2723982

the inverse of the function f (x) = 2x-10

brainly.com/question/628130

domain of the function

brainly.com/question/4135536

Keywords: domain, codomain, function, graphic

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Answer:  23.89%

Step-by-step explanation:

The empirical rule says that the 95% of the data falls in between two standard deviations of the mean.

Given : GMAT scores are normally distributed and the the average score is approximately \mu=540.

Also, 95% of his classmates scored between 400 and 680.

Then, by empirical rule , 95% of data falls in between mu\pm 2\sigma

i.e. 540- 2\sigma=400    (1)

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Subtracting (1) from (2), we get

4\sigma=680-400=280\\\\\Rightarrow\ \sigma=\dfrac{280}{4}=70

Let x be the random variable to represent the scores of every student.

Statistic z-score : z=\dfrac{x-\mu}{\sigma}

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The p-value = P(z

Hence, 23.89% of his classmates who scored lower than he did .

6 0
3 years ago
A boy is flying a kite. The vertical distance from the kite to the horizontal line containing the boy's hand is 68 ft. The horiz
valentinak56 [21]

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Step-by-step explanation:

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4 years ago
Find the length of the height of the right trapezoid shown below, if it has the greatest possible area and its perimeter is equa
Artyom0805 [142]

Answer:

The height of the right trapezoid is   \frac{6}{5+\sqrt{3}}\ units

Step-by-step explanation:

Let

x ----> the height of the right trapezoid in units

we know that

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P=AB+BC+CD+DH+HA

we have

P=6\ units

AB=BC=CH=HA=x ---> because is a square

substitute

6=x+x+CD+DH+x

6=3x+CD+DH -----> equation A

<em>In the right triangle CDH</em>

sin(30\°)=\frac{CH}{CD}

sin(30\°)=\frac{1}{2}

so

Remember  that CH=x

\frac{1}{2}=\frac{x}{CD}

CD=2x

tan(30\°)=\frac{CH}{DH}

tan(30\°)=\frac{\sqrt{3}}{3}

so

\frac{\sqrt{3}}{3}=\frac{x}{DH}

DH=x\sqrt{3}

substitute the values in the equation A

6=3x+CD+DH -----> equation A

CD=2x

DH=x\sqrt{3}

6=3x+2x+x\sqrt{3}

6=5x+x\sqrt{3}

6=x[5+\sqrt{3}]

x=\frac{6}{5+\sqrt{3}}\ units

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3 years ago
A number is multiplied by 8, and that product is added to 2. The sum is equal to the product of 2 and 25. Find the number.
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Step-by-step explanation:

<u>Let x be the number.</u>

<u>Set equation according to the information given</u>

2 + 8x = 2 × 25

<u>Simplify by multiplication</u>

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<u>Subtract 2 on both sides</u>

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<u>Divide 8 on both sides</u>

8x / 8 = 48 / 8

\boxed {x=6}

Hope this helps!! :)

Please let me know if you have any questions

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Answer: $40.95

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39+1.95= $40.95 for the jacket

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