Lesson 5 The Pythagorean Identity

Lesson 5 The Pythagorean Identity

Multiple Choice

• a

• b

• c

• d

Multiple Select

For which angles is the cosine positive? Select all that apply.

• 0 radians

• $\frac{5\pi}{12}$

• $\frac{5\pi}{6}$

• $\frac{3\pi}{4}$

• $\frac{5\pi}{3}$

Open Ended

Multiple Choice

 $\frac{3\pi}{4}$  The measure of angle ABD is to the left  . What are the approximate coordinates of D?

• (-0.71, 0.71)

• (-0.71, -0.71)

• (0.71, -0.71)

• (0.71, 0.71)

Multiple Choice

 $\frac{7\pi}{4}$  The measure of angle ABE is to the left  . What are the approximate coordinates of E?

• (-0.71, 0.71)

• (-0.71, -0.71)

• (0.71, -0.71)

• (0.71, 0.71)

Multiple Choice

In which quadrant is the value of the x-coordinate of a point on the unit circle always greater than the y-coordinate?

• Quadrant I

• Quadrant II

• Quadrant III

• Quadrant IV

Multiple Choice

Lin is comparing the graph of two functions g and f. The function g is given by g(x)=f(x−2). Lin thinks the graph of g will be the same as the graph of f, translated to the left by 2. Do you agree with Lin?

• Yes, the graph moves left by 2.

• No, the graph moves right by 2.