Hello,
Answer C
x²+x+1=(x²+2*1/2*x+1/4)+1-1/4=(x+1/2)²+3/4
<h2>Explanation:</h2><h2 />
- The input of a function is also called the domain and are those x-values for which the function is defined.
- The output of a function is also called the range and are those y-values for which the function is defined.
Here we have the following function:

And we know that:
Input:

Output:

Answer:
18 is greater than 16
Step-by-step explanation:
Increasing. It helps to graph it out.