Analyzing Functions from Graphs

For what intervals of x is f(x) positive?

• (-∞, -2) u (2, ∞)

• (-2,2)

• (-∞, -2] u [2, ∞)

• [-4,∞)

Tags

CCSS.HSF-IF.C.7A

For what intervals of x is f(x) decreasing?

• (-1,4)

• (-∞,-7)

• (-7,-1)

• (4,∞)

What is the domain of f(x)?

• [-8,7]

• (-6,2)

• (-1,4)

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the y-intercept?

• (3,0)
• (0,-3)
• (0,3)
• (-3,0)

Tags

CCSS.HSF-IF.C.7A

When is this function increasing?

• (-2.5, 2.5)

• (-∞, -2.5) U (2.5, ∞)

• (-∞, -2.5)

• (2.5, ∞)

This graph increases from...

• ( -1, 1 )

• ( 0, 4 )

• [ -1, 1 ]

• [ 0, 4 ]

When determining where a graph is increasing/ decreasing use...

• x-values

• y-values

This is increasing on the interval (s)...

• ( - ∞, -2 ) U ( 2, ∞ )

• ( - ∞, 16 ) U ( -16, ∞ )

• ( -2, 2 )

• ( - ∞, -2 )

This graph is _______ in the highlighted areas.

• Decreasing

• Increasing

This graph is decreasing on the intervals...

• ( -∞, -2 ) U ( 2, ∞ )

• ( -∞, 0 ) U ( 4, ∞ )

• ( -2, 2 )

• ( 0, 4 )