All categories

3 years ago

Are these functions?

Mathematics

2 answers:

OlgaM077 [116]3 years ago

7 0

Answer:

Relation 1 : Not a function

R2 : Function

R3: Function

R4: Not a function

storchak [24]3 years ago

4 0

You really should learn what a function is. It will help you in most of your future math courses.

(input, output) = (domain, range)

An input CANNOT go to two different outputs. This is not a function.

If the output is repeated, no problem. It is still a function but not ONE-TO-ONE.

Relation 1 is not a function because -7 goes to three different outputs.

Relation 2 is not function because cloud goes to two different outputs. Cloud is mapped to -6 and 6. Not a function.

Relation 3 is a function but it is not ONE-TO-ONE. Do you know why based on what I said above?

Relation 4 is not a function because -9 goes to two different outputs.

Understand?

You might be interested in

one number is 4 less than 3 times another number. if their sum is 16, find the numbers. which of the following equations could b

Olin [163]

X=3y-4
x+y=16

3y-4+y=16

4y = 20

y =5

x+y=16

x+5=16

x=16-5

x=11
y=5

hope helped

5 0

3 years ago

Write (-32)^-2 as an expression without a negative exponent please

Yuliya22 [10]

Step-by-step explanation:

Hey there!

(-32)^-2 Into positive exponents.

We generally law of negative index.

Example;

${x}^{ - y} = \frac{1}{ {x}^{y} }$

So, let's make it same as this:

${ - 32}^{ - 2} = \frac{1}{ { - 32}^{ 2} }$

Hope it helps....

5 0

3 years ago

What is the value of 9 in 49,254

Vlad [161]

Thousands because the 4 is in the ten thousands

5 0

3 years ago

Read 2 more answers

The difference between a country's exports and imports is called the country's trade balance. If one country had a trade balance

liq [111]

Answer:

C: 13 billion dollars

Step-by-step explanation:

- 86 + 142 - 43 = 13 billion dollars

8 0

3 years ago

Trigonometry

Ierofanga [76]

Answer:

0.2793

Step-by-step explanation:

We are asked to convert 16° to radians.

#We know that 1° is equal to π/180 or 0.01745rad.

To convert any angle degrees to radians, we multiply it by π/180:

$=16\textdegree \times \pi/180\\\\=\frac{4\pi}{45} \ \ rad \ or 0.2793\ rad$

Hence, the radians equivalent of 16° is 0.2793

7 0

3 years ago