The answer is:
The second option,
b.)
We are given the functions E(x) and K(x), since they both are function of the same variable, we need to add them in order to find the correct option.
From the statement we know the functions:
and
So, adding the functions we have:
Hence, the answer is the second option,
b.)
Have a nice day!
Answer:
Step-by-step explanation:
<u>Given function</u>:
where:
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f(1) means the value of the function when x = 1.
Therefore, substitute x = 1 into the given function to find f(1):
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f(4.5) means the value of the function when x = 4.5.
Therefore, substitute x = 4.5 into the given function to find f(4.5):
As the faces of the six-sided die are labelled 1 to 6, the only values of x that make sense are 1, 2, 3, 4, 5 and 6. Therefore, rolling a "4.5" does not make sense.
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f(10) means the value of the function when x = 10.
Therefore, substitute x = 10 into the given function to find f(10):
As the faces of the six-sided die are labelled 1 to 6, the only values of x that make sense are 1, 2, 3, 4, 5 and 6. Therefore, rolling a "10" does not make sense.
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The domain of a function is the set of all possible x-values.
As the faces of the six-sided die are labelled 1 to 6, the only possible values of x are 1, 2, 3, 4, 5 and 6.
The domain can also be written as:
or