Max Min Range Functions

What is the domain and the range for the graph?

• Domain : -2 ≤ x ≤ 2
  Range : 0 ≤ y ≤ 4

• Domain : 0 ≤ x ≤ 4
  Range : -2 ≤ y ≤ 2

• Domain : All real #s
  Range : y ≤ 4

• Domain : -2 ≤ x ≤ 2
  Range : y ≤ 4

Does the following quadratic equation have a maximum or minimum value? How can you tell?
y=x²+2x-3

• Minimum value, because the a value is positive

• Maximum value, because the b value is positive

• Maximum value, because the a value is positive

• Minimum value, because the c value is negative

What is the domain of the graph?

• All real numbers

• To infinity and beyond

• y ≥ 0

• x ≥ 0

The range is {4, 8, 12, 16, 20, 24}

• Trick

• True

There is a  min at 4 and a max at 24.

• Trick

• True

The range is all real numbers.

• Trick

• True

The function is decreasing.

• Trick

• True

The range is
y ≥ 9.

• Trick

• True

The maximum is at 4.

• Trick

• True

As x increases, y decreases.

• Trick

• True