Answer:
Step-by-step explanation:
I'm not sure how you are finding this in class, but the easiest way by far is to use the expressions for h and k:
and

(Just a fun fact: Those expressions come from the quadratic formula that help us to factor a quadratic equation.)
Filling in for h:
simplifies to

Filling in for k:
which simplifies a bit to
which simplifies a bit more to

The vertex, then, is (4, -25).
You would also find this if you completed the square. But again, I'm not sure how you're solving for the vertex in class.
Answer: -5
Step-by-step explanation:
I would assume it’s B and D
Answer:
120 games.
Step-by-step explanation:
We have been given that there are 16 teams in a football league. Each team plays each other twice. We are asked to find total number of games are there in the football league.
We will use formula
to solve our given problem.
Each team will play matches with one team less as it will not play match with itself.
We will divide all number of matches by 2 to avoid repetition.

Therefore, there are 120 games in the football league.
Answer:
$6,240
Step-by-step explanation:
$6,000 x .04 = 240
$6,000 + 240 = $6,240