I WORK #T SECOND GRADING, 1" SEMESTER NAME: GRADE & SECTION: Page 7e This is a Quiz worth 30 points from module 3. Detach the 2 pages and staple them together. ALL final answers should be written in blue or black ink only. Strictly NO ERASURE (of any kind) or change in answer. 1. Read carefully the statements below. Write TRUE if the statement is always correct, otherwise, FALSE. Use the space provided before each item. (1 point each) 1. The graph of the equation 2x2 + 2y = 2 is a unit circle. 2. The point () is on the unit circle. 3. In radian measure, 4 full turns correspond to 8 radians. 4. The reference angles of @ (in radians) and 0+ are equal. 5. The reference angles of coterminal angles are equal. 6. The reference angles of two angles laying in different quadrants can't be equal. 7. The reference angles of 0 and - 0 are equal, for any angle 0. 8. 8 and - 8 will never be coterminal angles, for any angle 9. 9. You can multiply a degree measure by - 180_to convert it to radian measure. 10. 0 and 8 + 720 are coterminal angles, for any angle @ measured in degrees. 11. The reference angle of -0, whose terminal side lies in the fourth quadrant, is equal to 0, for any angle 0. Read and analyze the questions then encircle the letter that corresponds to your answer. (1 point each) 1. Which of the following is not true about the unit circle? A. The circumference of a unit circle is 2nt. B. The area of a unit circle is It. C. The equation of a unit circle is x? + y? = 1. D. The radius of a unit circle is 1. 2. Which of the following is always true about a reference angle? A. A reference angle may be negative. B. A reference angle can be an obtuse angle. C. Two different angles (not coterminal) in the same quadrant can't have the same reference angle. D. The reference angle of 0, whose terminal side lies in the first quadrant, is also equal to 0. 3. Which of the following is coterminal with -?"? A. -30 C. 150 B. 1350 D. 210 4. Which of the following angles lies in the third quadrant and has a reference angle equal to 307 A. -30 C. -870 B. -210 D. 600 5. Which of the following pairs exhibits the same reference angle? A. 50" and 350 and 13r B. -105 and -4550 D. "" and