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qwelly [4]
3 years ago
9

4 Which of the following is a function? А B C D

Mathematics
2 answers:
Aloiza [94]3 years ago
7 0

Answer:

B)

Step-by-step explanation:

A function is when every input has one output.

Easiest way is to do the "vertical line test" and "horizonal line test."

Basically you draw a vertical line and a horizontal line.

If either line passes through more than one point, then it is not a function.

The only one that passes them is B, the line.

bogdanovich [222]3 years ago
5 0

Answer:

B

Step-by-step explanation:

A function is when every input has one output.

Easiest way is to do the "vertical line test" and "horizonal line test."

Basically you draw a vertical line and a horizontal line.

If either line passes through more than one point, then it is not a function.

The only one that passes them is B, the line.

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What is the domain of f(x) = 3^x -2?
user100 [1]

Answer:

"all real numbers"

Step-by-step explanation:

This is an exponential function.  The domain of the basic exponential function 3^x is "all real numbers."  This domain also applies to f(x) = 3^x - 2.

8 0
3 years ago
PLZ PLZ PLZ PLZ HELP ME WITH THIS QUESTION
soldi70 [24.7K]
Ur answer is c



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8 0
3 years ago
Read 2 more answers
Solve each question using square root property<br><br><br> (5x-1)^2=16
Goshia [24]

Answer:

(5x-1)^2=16

Step-by-step explanation:

7 0
3 years ago
The toy shop stocks tricycles and go-carts.
Mandarinka [93]

Total number of wheels in the toy shop = 37 wheels

Number of wheels for tricycles = 3

Number of wheels for go-carts = 5

  • Since the total number of tricycles and go-carts are not given, we solve this question using Assumption.

  • Let's assume: We have 4 tricycles and 4 go-carts

(4 x 3) + (4 x 5)

= 12 + 20

= 32 wheels. This assumption is wrong.

  • Let's assume: We have 4 tricycles and 5 go-carts

(4 x 3) + (5 x 5)

= 12 + 25

= 37 wheels. This assumption is correct.

Therefore, we have  4 tricycles and 5 go-carts in the toy shop.

To learn more, visit the link below:

brainly.com/question/23264573

3 0
2 years ago
What is f–1(8)??<br><br> Please select the best answer
notka56 [123]

Answer:

f^{-1}(8)=\frac{3}{2}

Step-by-step explanation:

Given f(x)=2x+5

We have to find f^{-1}(8)

In order to find f^{-1}(x) we have to make x as the subject of the formula

Let us assume f(x)=y

⇒2x+5=y

Subtracting both sides by 5

2x+5-5=y-5

2x=y-5

Dividing both sides by 2

\frac{2x}{2}=\frac{y-5}{2}

⇒x=\frac{y-5}{2}

Now substituting y with x

we have f^{-1}(x)=\frac{x-5}{2}

Now f^{-1}(8)=\frac{8-5}{2}

=\frac{3}{2}

So option (ii) is correct


5 0
2 years ago
Read 2 more answers
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