DE=21 That’s the right answer
Is a fixed point in the place
The answer is 3. Point and line symmetry
Answer:
C
Step-by-step explanation:
Given
f(x) = x² + x + 1
To obtain the function in vertex form use the method of completing the square.
Add/ subtract ( half the coefficient of the x- term )² to x² + x
f(x) = x² + 2( )x + - + 1
= (x + )² + → C