Trigonometric Functions PreC

Find the measure of the indicated angle. Round to the nearest tenth.

• 9.4
• 55.2
• 20.2
• 19.4

What is the reference angle for 45°?

• 45°
• 135°
• 180°
• 2∏

Tags

CCSS.HSF.TF.B.7

Based on your unit circle cos(30^o)=

• 1
• 1/2
• sqt3/2
• sqt2/2

Tags

CCSS.HSF.TF.A.2

What is the amplitude of the graph? 

• 1
• 3
• 6
• 9

Tags

CCSS.HSF-IF.C.7E

What is the period of this equation?
y = -5sin(3x)

• -5
• 2pi/3
• 2pi/5
• 3

Tags

CCSS.HSF-IF.C.7E

Based on your unit circle sin(0^o)=

• 1
• -1
• 0
• 1/2

Tags

CCSS.HSF.TF.A.2

What is the period?

• π/4
• π/2
• 3π/4
• 2π/3

Tags

CCSS.HSF.TF.A.4

What is the amplitude of this equation?
y = -10cos(5x)

• -10
• 5
• 2pi/5
• 10

Tags

CCSS.HSF-IF.C.7E

• A
• B
• C
• D

Tags

CCSS.HSF-IF.C.7E

What is the period?

• 3π/8

• π/2

• 3π/4

• π