Characteristics of Quadratic Functions

Which of the following are x-intercept(s) of the function?

• (-3,0)

• (-1,0)

• (0,0)

• (2,0)

• (4,0)

What is the equation for the axis of symmetry of the graph if the equation is f(x) = (x-2)(x+1)?

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What is the y-intercept of the graph?

What is the domain of the function?

• (-1,2)

• [0.5,oo)

• [-2.25,oo)

• (-oo,oo)

What is the range of the function?

• (-1,2)

• [0.5,oo)

• [-2.25,oo)

• (-oo,oo)

Does this function have a maximum/minimum? What is the max/min value?

• max: oo

• max: -2.25

• min: -2.25

• min: -oo

• min: 0.5

For what values of the domain is f(x) increasing?

• (-oo,oo)

• (-oo,0.5)

• (-oo,-2.25)

• (0.5,oo)

• (-2.25,oo)

For what values of the domain is f(x) decreasing?

• (-oo,oo)

• (-oo,0.5)

• (-oo,-2.25)

• (0.5,oo)

• (-2.25,oo)

What is f(3)?

What are the values of x when f(x) = 4?

• -3

• -2

• -1

• 3

• 4