Answer :
After solving the given function for x = 3, the resultant answer is (A) -28.
What are functions?
The exact same number of elements from Y is assigned to each element of X via a mathematical function from a set X to a set Y.
The function's domain and codomain are respectively referred to as the sets X and Y as a whole.
A function is a relationship between a number of inputs and outputs.
Simply described, a function is an association between inputs in which each input is coupled to exactly one output.
So, we have the function:
(x) = −5x² − x + 20
Now, calculate to find the value when: x = 3
Given that, we must determine the value of the function at x = 3.
Set x = 3 in the provided function, f(x)
f(3) = −5(3)² − x + 20
f(x) = -45 - 3 + 20 = -28
Therefore, after solving the given function for x = 3, the resultant answer is (A) -28.
Know more about functions here:
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