Problem 31 of 7
Rewrite x^2+10x+18 in vertex form and identify the vertex.
Hints
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
complete square and identify vertex.
Hidden until you reveal it.
Expression must be a quadratic function in x.
Enter your answer
No answer yet
Correct
Your answer is equivalent to the expected form.
Solution
Walkthrough
Walkthrough shown
Full solution stays hidden until you ask for it.
1. Complete the square to create vertex form a(x-h)^2+k.
2. Read h from the sign inside the parentheses.
3. Read k as the vertical coordinate of the vertex.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Vertex coordinates with the sign of h reversed.