If you get a function like f(2), you have to know that the 2 in the brackets/parentheses pretty much replaces the “x” in the equation. Think about it:
If we have f(x) and f(2), that must mean x=2
So we insert the value of x into the function and we get:
f(2)= 2*2+1=4+1=5
So 5 is the answer
Answer:
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Step-by-step explanation:
Plug in the given values and you'll see its option 2.
x=0 , f(x) = 0^2 + 1 = 1
x = 1 , f(x) = 1^2 + 1 = 2
x = 2, f(x) = 2^2 + 1 = 5
