Homework on Functions - Questions

Blockchain and Bitcoin 101
#1065
  1. A function takes a value and modifies it.
  2. a) x = 4 b) x=17 c) x=0
  3. f(x) = x/4 - 5
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#1066

  1. A function is an equation that is given an input to then have an output

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

  1. f(x)= (x/4) - 5
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#1067

  1. A function is a computation calculating in a certain way with X as the variable. You input a value into a computational set of instructions and it produces an output value.

  2. With the instructions given:
    a) f(2)
    b) f(7)
    c) f(0)

  3. With the instructions given:
    f(x)=(x/4)-5

#1068

  1. A function in mathematics is a ā€˜operationā€™ or ā€˜calculationā€™ that we want to preform on a number such as multiply by 2. This ā€˜operation/calculationā€™ does not change The number we supply can be different. But the functions ā€˜operation /calculationā€™ remains the same. In my example x2.

    • 4
    • 17
    • 0

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

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#1069

  1. Describe what a function does in your own words
    *A function uses a designated input and calculation to produce a desired 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

  3. 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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#1070

  1. Describe what a function does in your own words
    -A function is a computation that has set parameters to get an output based on an input.

  2. f(2)= 2(2)
    Answer is 4

f(7)=7+10
Answer is 17

f(0)=0(0)
Answer is 0

3)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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#1071

0^2= 0 (wich is defined)

#1072

  1. A function is a computation that takes an input, performs a calculation and provides an output.

a) 1
b) 17
c) 0

  1. f(x)= x^4-5
#1073

If x is even, you replace x and calculate x^2
If x is odd, you calculate x+10.

2 is even, so 2^2=4
7 is odd, so 7+10=17
0 is even, so 0^2=0

#1074

It works, you can do 0^2, wich is zero.

#1075
  1. A function takes an input and applies a mathematical formula to produce an output
  2. a.4 b.17 c.0
  3. f(x) = (x/4)-5
#1076

1.) A function is a an equation with a variable input.

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

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

#1077

Describe what a function does in your own words
Answer: A function is formula that takes an input and through some operations calculates an output.
Calculate the output of the following function
f(x) = {
{x^2 if x is even
x+10 if x is odd = =17
}
a) X=2 => f(2) = 4
b) X=7 => f(7) = 17
c) X=0 = > f(0) = 0
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

#1078

  1. A computation that takes an input, applies a a mathematic formula to get an output.

  2. 4, 17, 0

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

#1079

Answer 1:
A functions takes an input and operates on it to produce an output.

Answer 2:
a) 2 * 2 == 4

b) 7 + 10 == 17

c) 0 * 0 == 0

Answer 3:
f(x) = {

x / 4 - 5

}

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#1080

  1. A function is a computation that needs an input to produce an output.

  2. a. f(2) = 4
    b. f(7) = 17
    c. f(0) = 0

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

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#1081

  1. Describe what a function does in your own words
    Function calculates output based on inputs in equation

  2. Calculate the output of the following function

f(x) = { x^2 if x is even x+10 if x is odd }

  • a) f(2) - dont know what this ^ means and dont want to cheat by just writing down same answer as everybody puts here. Any help?

  • b) f(7). I know this though. 7 is odd number so we use x+10, therefor 7+10 = 17

  • c) f(0), 0 is not even nor odd number so result is 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

#1082

  1. Function is a mathematical process that defines an output, that is based on given input and calculated by exact predefined decription of mechanism what needs to be applied to the input in order to get desired result
    (in short, function is a prescription how to get an output from input)

  2. a) 4
    b) 17
    c) N/A ( function is invalid for x=0)

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

#1083

1.A function is a computation. Its an instruction to calculate an answer based on your instruction.
2. a. 4
b. 17
c. 10
3.f(x)= (x/4)-5

#1084

apparently, looking at answers of the others, my result for 2)c) is incorrect:

ā€œN/A (function is invalid for x=0ā€ ā€¦ for some reason I thought that 0 is not defined for this function too.

correct result is 0 then

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