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2 years ago

Is this relationship a function?

Mathematics

1 answer:

Oduvanchick [21]2 years ago

6 0

Answer:

No, this is not a function.

Step-by-step explanation:

*Domain - {0,1,3,5}

*Range - {2,5,2,4.8}

Rule: A function is a special type of relation in which each value of the domain is paired with exactly one value of the range.

Since 0 pairs with both 2 and 5, this would not be a function.

Hope this helps!

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After my salary was increased by $16\%,$ it was $\$52{,}200$. What was my salary before the increase?

boyakko [2]

The salary before the increase was $48000.

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2 years ago

What is the domain of the following graph?

Morgarella [4.7K]

Answer:

[0,9]

Step-by-step explanation:

The domain is the first set of the ordered pair. When finding the domain you are supposed to find which x value it starts from to where it ends. The x value starts from 0 and ends and the 9th unit on the x-axis which would give us 0,9 now since both points are closed you would use these symbols [ ] to show that it is closed meaning the answer would be [0,9]

Note:

I'm sorry if this is wrong but this is what I believe the answer is.

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2 years ago

$700 is invested at 4% per annum. How long will it take for the amount to reach $784?

Blababa [14]

Answer:

3yrs

Step-by-step explanation:

Given parameters:

Capital = $700

Percentage interest = 4% per annum

Unknown:

Time it will take for amount to be = $784

Solution:

To find the simple interest on an amount;

I = $\frac{PRT}{100}$

P is the principal

R is the rate

T is the time

I is the interest

Insert the parameters:

I = $\frac{700x 4 x T}{100}$

I = 28T

So;

At the end of the duration:

Principal + Interest = Amount

700+28T = 784

28T = 784 - 700

28T = 84

T = 3yrs

5 0

1 year ago

If rain is falling at 0.5 inches per hour and 1.5 inches have already accumulated, how many hours must have passed if there are

zavuch27 [327]

Given :

Rain is falling at 0.5 inches per hour and 1.5 inches have already accumulated.

To Find :

How many hours must have passed if there are 5 inches of rain .

Solution :

Let , after x hours rain accumulated is 5 inches .

We know , general equation of line :

y = mx +c

Here , m = 0.5 and c = 1 .

So , equation of rain accumulated is :

$y=0.5x+1$

Now , putting value of x = 5 hours .

We get :

$y=0.5\times 5+1\\\\y=2.5+1=3.5\ inches$

Hence , this is the required solution .

7 0

2 years ago

Which equation represents the line shown on the graph?

Firlakuza [10]

Hello there,

To find out the equation you need to use slope intercept form...

y = mx + b

The only equation above that follows that form is...

y = 2x

Hope I helped!!

-Char

5 0

2 years ago

Read 2 more answers