9514 1404 393
Answer:
x = -3/2
Step-by-step explanation:
The zeros of the function are the values of x that make the factors zero:
x = -4, x = 1
The axis of symmetry is the vertical line halfway between these zeros.
x = (-4 +1)/2 = -3/2
The equation of the axis of symmetry is x = -3/2.
Answer:
Step-by-step explanation:
Let be "y" the monthly demand for the company’s sports caps, "x" the amount in dollar spent on advertising and "z"the price ind dollars per cap.
The model for this situation is:
Where "k" is the constant of proportionality.
Since when
and
, we can substitute values into
and solve for "k" to finds its value:
Then, in order to calculate what price yields a demand of 300 caps when advertising is increased to $3,000, we must substitute the following values into :
Then:
Solving for "z" we get: