Intervals of Positive and Negative QUICK!

What is the RANGE of this graph?

• -7<x<5

• -7≤y<5

• -3<x<1

• -3≤y<1

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the y-intercept shown on the graph?

• (0, -2)
• (3, 0)
• (0, 3)
• None of these.

Tags

CCSS.HSF.IF.B.4

CCSS.HSS.ID.C.7

What are the x-intercepts of this function?

• 0 and 2

• -4 and 0

• 2 and 3

• 0 and 4

Answer explanation

We need these in order to write intervals where it is positive or negative.

Tags

CCSS.HSF-IF.C.7A

Write the interval that represents the negative portion of the function?

• (-2,1)

• (-0.5,-3.5)

• (-3,0)

Tags

CCSS.HSF-IF.C.7A

Where is the function positive?

• Nowhere

• (0.5, 2)

• (-3, 0.5); (2, 5]

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.D.10

Where is the function positive?

• (0,5]

• (-∞,2]

• (-∞,0)

Tags

CCSS.HSF-IF.C.7B

Where is the function negative?

• (-∞,1)

• (-∞,∞)

• (1,∞) and (-∞,1)

• (-1,∞)

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.D.10

CCSS.HSA.SSE.A.1

Where is the function positive and where is it negative?

• positive (-2,1) and (3,∞) and negative (-∞,-2) and (1,3)

• positive (-∞,-1) and (2,∞) and negative (-1,2)

• positive (-1,4) and negative (2,-2)

• positive (∞,3) and (1,-2) and negative (3,1) and (-2,-∞)

Tags

CCSS.HSA.APR.B.3

Find the function's maximum and minimum points

• no maximum

  minimum (-4,-1)

• no minimum

  maximum (-3, 1)

• no maximum

  minimum (-1,-4)

• maximum (-3,1)

  minimum (0,-3)

Tags

CCSS.HSF-IF.C.7A

Identify where the function is increasing and where it is decreasing.

• increasing (-1, ∞) and decreasing (-∞,-1)

• increasing (-∞, -1) and decreasing (-1, ∞)

• increasing (-∞,∞) and decreasing nowhere

• increasing (-1, -4) and decreasing (-3, 1)

Tags

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7