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emmasim [6.3K]
3 years ago
13

PLEASE HELP Determine which relation is a function.

Mathematics
2 answers:
kari74 [83]3 years ago
6 0

Answer:

Option D.

Step-by-step explanation:

A relation is called a function if there exist a unique output for each input.

Vertical line test : The graph of a function intersect each vertical line almost once.

If the graph passes vertical line test, then it is a function otherwise it is not a function.

From the given graphs it is clear that graph first three graphs intersect the vertical line more than once, therefore they are not functions.

Last graph passes the vertical line test, therefore it is a function.

Hence, the correct option is D.

Sever21 [200]3 years ago
4 0
The answer is A a function looks like a side ways u 
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Ipatiy [6.2K]

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

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2 years ago
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NemiM [27]
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3 0
2 years ago
ou live in the building on the left in the drawing, and a friend lives in the other building. the two of you are having a discus
Alenkinab [10]

Answer:

1.3

Friend is wrong

Step-by-step explanation:

Given:

friend's claim: height of his building is more than 1.50 times the height of yours

line of sight to the top edge of the other building makes an angle of 21° above the horizontal

line of sight to the base of the other building makes an angle of 52° below the horizontal

Solution:

Let A be the height of your building is A

Let B+A his building is B higher than yours.

Let the distance between the buildings is x.  

then

tan 52 = A/x

tan 21 = B/x  

A/B = tan 52 / tan 21

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A/B = 3.33

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A/A + B/A = 1.50

1 + B/A = 1.50

B/A is basically (B/x) / (A/x)

So

1+ 3.33 / 3.33

= 4.33/3.33

= 1.3

Since 1.3 is not equal to 1.5

Hence the friend's claim is wrong.

5 0
3 years ago
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earnstyle [38]
1/3 is the slope
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7 0
2 years ago
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