- Function is a computation. Data to compute is in input result is an output.
a) 4 b)17 c) 0
3.f(x)=(x/4)-5
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1- It is a mathematical formula that needs an input to return an output.
2a) 4
2b)17
2c) 0
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Thanks! I agree with the readability aspect.
- A function is a description of rules to be applied to each and every unique input.
- a) 4
b) 17
c) 0 - f(x)=(x/4)-5
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Thank you. This makes perfect sense.
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A function is a set of instructions for the execution of a computation.
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- 4
- 17
- 0
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I am embarrassed to say that I am not sure how to answer this question. Is the definition for this function and different from that of the problem in question 2?
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a function is a formula that computes an input and puts out an output
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a f(2)
b f(7)
c f(0) -
f (X)= (x/4)-5
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1 Function takes a input and perform a calculation with it.
2. a) 4
b) 17
c) 0 or error
3. f(x)= x/4 - 5
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1: A function is a calculation that gives an output from an input.
2: a) = 4 b) = 17 c) = 0
3: F(x) = (x/4)-5
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- A function takes an input and gives an output based on specified instructions.
- a) 4
b) 17
c) 0 - f ( x ) = x / 4 - 5
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I understand the whole n=2k (for k) but I thought this was referring to functions, and hence I went down the mathematical function path, rather than the basic math path 
I never claimed to be bright (I think we’ve established that 
For anyone else confused as to which is which:
- An even number is a number n which can be written as n=2K for some whole number K. e.g.: after dividing, there is zero (0) remainder
- An odd number is a number n which can be written as n=2K+1for some whole number K
Even is thus: n = 2K
0 = 2K
===> 0 = 2K
===> 0/2 = K ===> 0 = K ===> 0 is a Whole Number (for which there is no remainder, in this equation). So it is an even number.
Odd is thus: n = 2K + 1
0 = 2K + 1
===> -1 = 2K
===> -1/2 = K ===> -0.5 = K ===> 0.5 is not a Whole Number 
So zero is not an odd number.
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- A function is a generalized input-output process that defines a mapping of a set of input values to a set of output values.
2a) 4
2b) 17
2c) 0 or error
- f(x) = x/5 - 4
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A function takes an input, performs operations/computations based on this input and any function parameters, and gives results as an output.
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A) 4
B) 17
C) 0 -
f(x) = (x/4) -5
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- A function takes a given input, performs a calculation and returns a single output
- • f(2) = 4
• f(7) = 17
• f(0) = 0 - f(x) = x/4 - 5
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In the second question you had to provide answers for the defined formula. In the third you must specify the formula based on provided instructions.
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These are incorrect unfortunately. If X is even you must square it and if its odd you must add 10.
0 is an even number so no error.
Sorry! I didnt read the question properly.
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Describe what a function does in your own words
A mathemetical function applies math operators to an input variable and produces a result. -
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
- 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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- Describe what a function does in your own words
- A function takes an input/variable and does some “logic”/calculations with the variable and outputs it.
- Calculate the output of the following function
- a) 4
- b) 17
- c) In programming, “0” is considered an even number AFAIK which means the result is = 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
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