Homework on Functions - Questions

Blockchain and Bitcoin 101
#864
  1. A function is a variable acted upon by a formula. You input a value for the function, complete a calculation, then produce a result.
  2. Not sure what ^ means.
    ?, 17, x
  3. f(x) = {
    x/4 = (x/4)-5
#865
  1. A function is a computation that performs a certain task with the input and gives it an output.
  2. a)4
    b)17
    c)0
  3. f(x) = x/4 - 5
1 Like
#866
  1. A function takes an input, does something to that input then outputs the result.
  2. a) 4, b) 17, c) 0 and 10 assuming 0 can be odd and even
  3. f(x) = {(x / 4) - 5}
1 Like
#867

  1. Describe what a function does in your own words.
    A function can be expressed as “if this then that”. It’s a rule to be applied if/when an established factor occurs getting an expected result.

  2. What will be the output for the following inputs?
    a) 4
    b)17
    c) 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}

1 Like
#868

[1] What is a function?
A function is a mathematical equation that takes an input and gives an output.

[2.a] f(2) = 4 (Since x is even and 2^2 = 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

1 Like
#869
  1. Describe what a function does in your own words
    It takes an input and give 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) : output is 4
• b) f(7) : output is 17 ( 7+10)
• c) f(0) : output 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.
    Answer:
    F(x) = f(x/4) - 5
1 Like
#870

  1. A function is a mathematical formulae with variables in it that (when entered as input) are used to calculate an output or answer.

a) f(2) = 4
b) f(7) = 17
c) f(0) = 0 or (suspended or crash)

  1. f (x) = ( x / 4 ) - 5
#871

  1. A function takes an input and gives an output.

a) 4
b) 17
c) 0

  1. f(x)= (x/4)-5
#872

  1. A functions takes an input and gives an output.

a) 4
b) 17
c) 0

  1. f((x/4)-5)
1 Like
#873

A function is a math set of rules that applied to an input they they provide a specific output.

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

f(x) =(x/4)-5 example if x is 20: f(20)=0

1 Like
#874

  1. It does what you told it to to a number.

a.4

b.17

c.0

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

1 Like
#875
  1. Describe what a function does in your own words

A function is a system that takes an input, can change or manipulate it depending on the system, and provide an output.

  1. Calculate the output of the following function

f(x) = x^2
f(2) = 4
f(7) = 49
f(0) = 0

f(x) = x+10
f(2) = 12
f(7) = 17
f(0) = 10

  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

#876
  1. A function is a computation with an imput and output
    2 f(2)=4, f(7)=17 , f(0)=0
    3.f(x)=(x/4)-5
1 Like
#877

  1. A function is an expression that determines the output of a given input.

  2. a) f(2) = 2^2 = 4
    b) f(7) = 7+10 = 17
    c) f(0) = 0^2 = 0

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

1 Like
#878

A function is an mathematical equation that takes an input and produces an output that can never be reversed.

a) 4
b) 17
c) 0

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

1 Like
#879
  1. A function is a process of calculation where there is defined “input” that leads to a desired “output”.
  2. A) 4
    B) 17
    C) 0
  3. F(x)=(x/4)-5
1 Like
#880

  1. A function takes an input of a number and mathematically computes it in a certain way to create an output of a number.

  2. a) 4 b) 17 c) 0

  3. f(x) = {5 - (x/4)}
    (everyone is putting {(x/4) - 5} but I’m pretty sure the questions says:

Correct me if I’m wrong.

#881

1- A function is a mathematical tool that will give you an output based on input variables and predetermined set of instructions.

2- a-) 4 ; b-) 17; c-) 0

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

1 Like
#882

  1. a function describes the connection between a certain input and output.

  2. 4, 7, 0

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

#883

It does not matter if you put it “x/4 - 5” or “5 - x/4” because multiplications and divisions have to be computed before plus and minus calculations anyway due to mathematical rules. You do not even need brackets for this certain calculations.

1 Like