Homework on Functions - Questions

Blockchain and Bitcoin 101
#6198
  1. Functions perform a set of computation for a desirable outcome

a. 4
b. 17
c. 0
3.
f(x) = {
(x / 4) - 5
}

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#6199

  1. A function is the formula that determines the type of action for a set of inputs

  2. a= 4
    b=17
    c=0

  3. f(x)=(x/4)-5

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#6200
    1. A function is a mathematical computation that uses an input to calculate an output.

  2. a=4, b=17, c=0

  3. f(x)=(x/4)-5

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#6201

1). A function is a computation, a mathematical formula that when you take an input and based on that input(variable) will produce an output. A function is a relation between a set of inputs and a set of outputs where each input is related to an output. A function is often written as a “f” and the input denoted as an x.

2). f(x)={x^2} f(2) = {2^2} = 4
f(x)={x+10} f(7)={7+10} = 17
f(x)={x} f(0)={0} = 0

3). f(x)={(x/4)-5}

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#6202
  1. A function uses a variable with a pre determined value and computes that variable with the input for a given output.

2 .
a.) 4
b.) 17
c.) 0

  1. f(x) = (x/4) - 5
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#6203

  1. Describe what a function does in your own words
    Function is used to run the same calculations for different input without having to run the calculations over again

  2. Calculate the output of the following function

f(x) = {

x^2 if x is even

x+10 if x is odd

}

What will be the output for the following inputs?

  • a) f(2) = 4
  • b) f(7) = 17
  • c) f(0) = 0
  1. Write the definition of a function f that takes an input x, divides it by four and then outputs that result subtracted by 5.
    f(x) = {(x/4) - 5}
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#6204

  1. A computation whereby variable inputs create an output.

  2. a) 4
    b) 17
    c) depends on if you believe 0 is odd or even, 0 or 10

  3. (x/4) - 5

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#6205

0 is even number. f(0) = 0^2=0

#6206

  1. is a correspondence rule between two sets such that each element of the first set corresponds to one and only one element of the second set.

  2. a) 4
    b) 17
    c) 0

  3. f(x) = (x/4) - 5

1 Like
#6207
  1. Describe what a function does in your own words- A function is computation that has a input and provides an output
  2. Calculate the output of the following function
f(x) = {

x^2 if x is even

x+10 if x is odd

}

What will be the output for the following inputs?

  • a) f(2) 4
  • b) f(7) 17
  • c) f(0) 0
    ***If someone could provide a more detail way to understand this it would be great, I am having a tough time understanding the functions
  1. Write the definition of a function f that takes an input x, divides it by four and then outputs that result subtracted by 5.
    f(x)=(x/4)-5 <-- im not sure how this was the answer, I was trying to read others responces but still need some help on this
#6208
  1. Describe what a function does in your own words

A function takes an input, runs a calculation, and creates an output. It’s a formula, much like the ones you place in an Excel cell.

  1. Calculate the output of the following function
f(x) = {

x^2 if x is even

x+10 if x is odd

}

What will be the output for the following inputs?

  • a) f(2)

a) = 4

  • b) f(7)

b) = 17

  • c) f(0)

c) = 0

  1. Write the definition of a function f that takes an input x, divides it by four and then outputs that result subtracted by 5.

f(x) = (x / 4) – 5

1 Like
#6209

Is a branching function. Simply meaning you decide the path the function will take based on the function input. So in case where x = 7, it means that x is an odd number and therefore you use the second path (x + 10). And in case x= 2, since 2 is even number, you use the first path. f(2) = 2^2 = 4.

^ this symbol in mathematics always means to the power of, that means if you take (a) as an example f(2) = 2^2 or simpler f(2) = 2x2. if we had to the power of 4 (^4) and took the f(2) as a factor then we would have f(2) = 2^4 which mean f(2) = 2 x2 x2 x2 = 16.

F(x) is simply a notation for a function where x is the function variable or input. To get the formula for x you should read the question more carefully:

It states you should write a function f, that takes an input x and divides it by 4 => x/4 . Then outputs that result subtracted by 5 => (x/4) - 5 .

You could split this in two parts or functions a(x) which divides the input by 4 => a(x) = x/4 and takes this input in a new function that then subtracts the input by 5 => b(x) = a(x) - 5 or to simplify in one function you would get f(x) = x/4 - 5 .

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#6210

1.A function is a computation that takes the input and computes and we gets an output
2.f(2)=4
f(7)=17
f(0)=0
3. f(x)=(x/4)-5

1 Like
#6211

A3. f(x) = ((x/4) - 5)

1 Like
#6212

A function is a computation - that creates an input and creates an output.

4
17
0

f(x) = (x/4)-5

1 Like
#6213

  1. Describe what a function does in your own words
    A function takes an input value, and processes some sort of computation to get to a new output value

  2. Calculate the output of the following function

f(x) = {

x^2 if x is even

x+10 if x is odd

}

What will be the output for the following inputs?

  • a) f(2) = 2^2 = 4
  • b) f(7) = 7+10 = 17
  • c) f(0) = 0^2 = 0
  1. Write the definition of a function f that takes an input x, divides it by four and then outputs that result subtracted by 5.

f(x) = (x/4)-5

1 Like
#6214
  1. Function is a computational process that adds variable as input and deliver output.
  2.   A: 4
   B: 17
   C: 0
  3. f(x)= (x/4)-5
1 Like
#6215

1 a function is something that take an input and gives back an output

2 a 4, b 17, c 0

3 f(x) = x/4 - 5

1 Like
#6216
  1. A function relates an input to an output.
  2. A. 4
    B. 17
    C. 0
  3. f(x) = (x/4) - 5
1 Like
#6217
  1. A function is the relationship between 2 sets of variables ie. input = output, x = y
  2. a) = 4
    b) = 17
    c) = 0
  3. f (x) = (x/4)-5
1 Like