Trig Review

Given the ordered pair (-¹/₂ , ^√3/₂), what is the value of cosine?

• √3

• ^-1/₂

• ^√3/₂

• ^√3/₃

Tags

CCSS.HSF.TF.A.2

On the unit circle, which radian measure represents the point (^√3/₂ , -¹/₂)

• ^11π/₆

• ^5π/₃

• ^7π/₆

• ^4π/₃

Tags

CCSS.HSF.TF.A.2

How many radians is 216°?

• ^12π/₅

• ^6π/₅

• ^5π/₆

• ^5π/₉

Tags

CCSS.HSF.TF.A.2

Evaluate without a calculator: sin 45°

• √2

• √2 /2

• 1/2

• √3/2

Tags

CCSS.HSF.TF.A.2

Evaluate without a calculator: cos (π/3)

• 1/2

• √2/2

• √3/3

• √3 /2

Tags

CCSS.HSF.TF.A.2

What is the period of y = 4Cos(2x)?

• 4π
• π
• 2π
• π/2

Tags

CCSS.HSF.TF.A.4

What is the difference between y = sinx and y = 4sinx when graphed?

• a period change
• an amplitude change
• a phase shift
• no difference in graphs

Tags

CCSS.HSF-IF.C.7E

The graph of y = 8cosx is ________ than the graph of y = cosx.

• shorter
• taller
• wider
• narrower

Tags

CCSS.HSF-IF.C.7E

The graph of y=(1/3)sinx is _________ than the graph of y=sinx.

• shorter
• taller
• wider
• narrower

Tags

CCSS.HSF-IF.C.7E

A _________ function is one that has a pattern that repeats itself over and over again.

• reflected
• periodic
• translated
• stretch-shrink

Tags

CCSS.HSF.TF.A.4