Answer:
Option B.
Step-by-step explanation:
Remember that the profit is defined as the difference between the revenue and the cost.
So, having a profit y = 0 means that the woodworker did not win nor lose anything.
Then the zeros of the function, the values of x such that the graph intersects the x-axis, are the prices such that she does not win nor loss anything.
In the graph we can see that the zeros are at:
x = 15 (the first one)
x = 70 (the second one)
so the zeros are at x = 15 and x = 70, and these are the prices such that the profit is zero, so at these prices she does not make nor lose money.
The correct option is B.
Answer:
Step-by-step explanation:
Answer D I just fot it right on my test
A parabola is open up if a > 0.
The vertex formula:
(h; k) - the coordinates of the vertex
Therefore h = -5 < 0
Answer: B. y = x² + 10x + 24.
