Algebra 2 Honors—Semester B
Extension Activity 1 of 2
Objectives
Analyze a unit circle.
Conclude information about an experiment.
Submitting Assignments
Option 1—Type answers in the space provided using a mathematical writing program and
email your work through regular email (using copy/paste).
Option 2—Print this document, complete your work by hand, scan it, and email it to your online
instructor through normal email at his or her Academy email address.

Assignment
Topic—Trigonometric Functions
The unit circle below has a center at (0,0) and a radius of 1.
Any point on the circumference of
the circle can be described by an ordered pair (x, y).
The coordinates of B are (0.6, 0.8).
Use
the picture below to answer the questions:
1.
What are the coordinates of C, D, and E?
C- (-0.7,0.7)
D- (-0.4,-0.9)
E- (0.85,-0.5)
2.
In which quadrant are both x and y positive?