Precalculus Functions

Using the vertical line test. Is this a function?

• Yes

• No

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

Using the vertical line test. Is this a function?

• Yes

• No

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.4

Which of the relations below is a function?

• {(2, 3), (3, 4), (5, 1), (5, 4)}

• {(-2, 3), (3, 4), (6, 2), (9, 3)}

• {(-2, 3), ( -3, 4), (6, 2), (-3, 3)}

Tags

CCSS.8.F.A.1

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

• D: {1, -3, -4,}
  R: {0, 1, 2, -4}
• D:{0, 1, 2, -4}
  R:{1, -3, -4}
• D:{0, 1, 2, 3, 4}
  R:{1, -3, -4}
• D:{0, 1, 2, 3}
  R:{0, 1, 2, 3, 4}

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

CCSS.HSF.IF.B.5

What is g(-2) if:

• -7

• 7

• 1

• -1

Tags

CCSS.HSF.IF.A.2

What is the RANGE?

• (-∞, +∞)
• (-2, +∞)
• [-2, +∞)
• (-∞, 0) U (0, +∞)

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Given f(x) = 3x² + 1, what is f(t + 2)?

• 3t² + 3

• (3t + 2)² + 1

• 3(t + 2)² + 1

• none of these

Tags

CCSS.HSF.IF.A.2

Given f(x) =  $\frac{3x+2}{x-1}$  , what is the domain of f(x)?

• All real numbers greater than or equal to 1

• All real numbers except 1

• x = 1

• All real numbers

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

CCSS.HSF.IF.B.5

What is the domain of y =  $\sqrt{x}$  ?

• All real numbers

• All real numbers greater than 0

• All real numbers less than 0

• All real numbers greater than or equal to 0

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

When is this function increasing?

• −2.5 < x < 2.5
• 0 < x < 5
• 0 < x < 55
• −5 < x < 0

Tags

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7