Use Interval Notation

Express the following in Interval Notation
-8 ≤ x < 8

• [-8, 8]
• [-8,8)
• (-8, 8]
• (-8, 8)

Tags

CCSS.6.EE.B.8

Express the following in Interval Notation
 -9 < x ≤ -4

• [-9, -4]
• (-9,-4]
• [-9, -4]
• (-9,-4)

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

On which interval is this function increasing?

• $x\ \epsilon\ \left(-\infty,+\infty\right)$

• $x\ \epsilon\ \left(-\infty,\ 4\right)$

• $x\ \epsilon\ \left(-\infty,\ -2\right)$

• $x\ \epsilon\ \left(-2,+\infty\right)$

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

When is this function increasing?

• -2.5 < x < 2.5
• 0 < x < 5
• 0 < x < 55
• -5 < x < 0

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSF.IF.B.5

Which statement is true about this function?

• The function is never constant
• The function is always increasing
• The function is never decreasing
• The function increases on the interval 11:00 < x < 15:00

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSF.IF.B.6

When is the velocity decreasing?

• 0 < t < 60
• 40 < t < 60
• 15 < t < 40
• -40 < t < 0

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

Which are the intervals of decreasing for the graph?

• (-∞, 0)

• (0, 2)

• (2, ∞)

• (-∞, ∞)

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

Which is the interval of increasing for the graph?

• (-∞, -4)

• (1, ∞)

• (-4, 1)

• (-4, -2)

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSA.REI.D.10

For what values of x is this function greater than 2.  f(x) > 2

•  $x\ \epsilon\ \left[-4,\ 0\right]$ 

•  $x\ \epsilon\ \left(-4,\ 0\right)$ 

•  $x\ \epsilon\ \left(-4,\ 2\right)$ 

• $x\ \epsilon\ \left(-2,+\infty\right)$

Tags

CCSS.HSF-IF.C.7B

When is the velocity negative?

• 30 < t < 55

• 
  

  $30\le t\le55$

• 15 < t < 40

Tags

CCSS.HSF.IF.B.4