4=2c-12-4
4=2c-16
20=2c
10=c
The answer should be 30. I hope this helps :)
Answer:
B.
Step-by-step explanation:
Answer: The parabola has its concavity downwards, so we need a function in the model:
With a negative value of 'a'
The vertex is (0,0), so we have that:
The x-coordinate of the vertex is given by the equation:
So we have a function in the model:
With a < 0
The only option with this format is B:
Step-by-step explanation:
