Precalculus Finals Review - Domain, Functions, and Vectors

• all real numbers, except for x=-3
• all real numbers, except for x=0
• [0, ∞)
• (0, ∞)

What number CANNOT be in the denominator of a fraction?

• a negative number

• 0

• 1

• any whole number

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

State the domain

• (-oo, -1) U (-1, oo)

• [-1, oo)

• (-oo, -1]

• (-1, oo)

f(x) = 3x² + 7x and g(x) = 2x² - x - 1, find (f - g)(x).

• x² + 8x + 1
• x² + 6x - 1
• 5x² + 8x - 1
• x² + 8x -1

Tags

CCSS.HSF-BF.A.1B

All of the x values or inputs are called what?

• Domain
• Range
• Relation
• Function

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1