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sasho [114]
3 years ago
10

Does this graph represent a function? What is the domain and range of the graph

Mathematics
1 answer:
Daniel [21]3 years ago
6 0
Yes it is a function. It passes the vertical line test. In other words, it is impossible to draw a single vertical line through more than one point on the V shaped graph. Any input leads to exactly one output.

The domain is the set of all real numbers. This is because we can plug in any x value leading to some specific y value. There are no holes or gaps or jumps to indicate we must restrict any given x value. The domain would not be the set of whole numbers only because values between the whole numbers (eg: decimal values like x = 2.75) work just fine. 

The range is the set of y values such that y is either 0 or larger than 0. In short, the range is y \ge 0. Notice how any point on the V shaped graph has a y coordinate that is either 0 or larger than 0. It is impossible to get a y value that is negative.

--------------------------------------------------------------------

In summary,
Yes it is a function
Domain: all real numbers
Range: y \ge 0
So the answer is choice B
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Artyom0805 [142]

Answer: By moving from sea level to Mexico City  air pressure is reduced by 25%.

Step-by-step explanation:

Hi, to answer this we have to apply a decrease rate formula

P0 (1-r)^x

Where:  

p0= initial pressure

r = decrease rate. (0.4 = 0.4/100=0.004 decimal form)

x = feet (hundredths, since the air pressure decays every 100 feet we have to divide the input value by 100)

Replacing with the values given

P0 (1- 0.4/100)^(7340/100) =

P0 (0.996)^73.4 =

P0 ( 0.75)=

The air pressure at Mexico City compared to the sea level is 75% (0.75 x 100 =75%)

To obtain the percent decrease  

100% -75% =25%

7 0
2 years ago
What is the value of 2 in 5,670,249,114? And describe 2 ways to find value?
kirill115 [55]
There are two ways in finding the place value of 2 in 5,670,249,114
 First by breaking down the numbers:
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</span>



4 0
2 years ago
A store offers 3 for the price of 2. What is the implied discount?
Aliun [14]
It would be, 33%.

Hope this helps!
3 0
3 years ago
Read 2 more answers
How many centimeters are in 6 feet
Mumz [18]

Answer:30.48

Step-by-step explanation:

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3 years ago
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sergeinik [125]

Answer:

centre = (4,-2)

radius = 3

Step-by-step explanation:

The centre-radius form of the circle equation is in the format

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<h3> (x – 4)² + (y – (-2))² = 3²</h3>

So, by translating we can say that

centre = (4,-2)

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3 0
3 years ago
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