Quadratic Applications

Quadratic Applications

Poll

The same company's profit can be calculated using all three forms:

Standard Form:

 $-2x^2+24x-54$  
Factored Form:  $-2\left(x-3\right)\left(x-9\right)$  
Vertex Form:  $-2\left(x-6\right)^2+18$  
Which form is most useful for finding the maximum profit?

• Standard

• Factored

• Vertex

Poll

The same company's profit can be calculated using all three forms:

Standard Form:

 $-2x^2+24x-54$  
Factored Form:  $-2\left(x-3\right)\left(x-9\right)$  
Vertex Form:  $-2\left(x-6\right)^2+18$  
Which form is most useful for finding the profit when the price is zero?

• Standard

• Factored

• Vertex

Poll

The same company's profit can be calculated using all three forms:

Standard Form:

 $-2x^2+24x-54$  
Factored Form:  $-2\left(x-3\right)\left(x-9\right)$  
Vertex Form:  $-2\left(x-6\right)^2+18$  
Which form is most useful for finding the prices that give a profit of zero dollars?

• Standard

• Factored

• Vertex

Multiple Choice

If you are given the zeros of a quadratic function, what is the easiest way to find the axis of symmetry?

• you don't have enough information

• guess and check with a graph until you find the x-intercepts that match

• find the middle number between the zeros