There ate 180 bacteria in a colony and the number of bacteria grows at a rate of 22% each hour. What is the starting value?
1 answer:
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Answer:
D. (3. —1)
Step-by-step explanation:
Vertex of a quadratic function:
Suppose we have a quadratic function in the following format:
It's vertex is the point
In which
Where
If a<0, the vertex is a maximum point, that is, the maximum value happens at , and it's value is
.
Turning point of a quadratic function:
The turning point of a quadratic function is the vertex.
y = x2 — 6x + 8
This means that
Now, we find the vertex.
(x,y) = (3,-1), and the correct answer is given by option D.