Analyzing Polynomial Range and Domain

The domain of a polynomial function is always (-∞, +∞).

• True
• False

The range of a polynomial function is always (-∞, +∞).

• True
• False

What is the range of this quadratic function?

• All real numbers.
• [2, infinity)
• [4, infinity)
• (negative infinity, 4]

What would be the leading coefficient if this this polynomial was written in standard form?

• 8
• -4
• -1
• 1

What is the range of this function?

• All real numbers.
• [2, infinity)
• [-2, infinity)
• [0, infinity)

What is the interval of increase?

• (negative infinity, -2)
• (-2, infinity)
• (2, infinity)
• (negative infinity, 2)

What is the relative maximum value?

• y = 4
• y = 2
• y = 1
• y = -1

What is the interval of decrease?

• (negative infinity, -2)
• (-2, infinity)
• (2, infinity)
• (negative infinity, 2)

The end behavior can be written as x --> infinity, y --> ___ and as x --> - infinity, y --> ___. 

• infinity, infinity
• -infinity, - infinity
• infinity, - infinity
• - infinity, infinity

The range of a quadratic function is always (-∞, +∞).

• True
• False