A.6(a) Quadratic Domain and Range

The domain is all the possible x values. The range is all the possible y values.

The domain of a parabola is all real #'s.

The range of a parabola has either a maximum or a minimum.

• Domain: All real #'s

  Range: y > Min. or y < Max.

• ...

What is the domain of this parabola?

• All real #'s

• y > 4

• y < 4

• 3 < y < 7

What is the range of this parabola?

• All real #'s

• y > 4

• y < 4

• 3 < y < 7

What is the range of this parabola?

• All real #'s

• y > -1

• y < -1

• x > -4

What is the domain of this parabola?

• All real #'s

• y > -1

• y < -1

• x > -4

What is the range of this parabola?

• All real #'s

• y > -9

• y < -9

• x > -9

What is the range of this parabola?

• All real #'s

• y > 16

• y < 16

• x > 16

What is the domain of this parabola?

• All real #'s

• y > -9

• y < -9

• x > -9

What is the domain of this parabola?

• All real #'s

• y > 16

• y < 16

• x > 16

What is the range of this parabola?

• x < -10

• y > -10

• y < -10

• x > -10