**Instructions: Circle the correct answer. (15 questions x 1 point each = 15 points)** 1. The equation \( ax^2 + bx + c = 0 \) will be quadratic if: - (A) \( b \neq 0 \) - (B) \( c \neq 0 \) - (C) \( a \neq 0 \) - (D) \( a = 0 \) 2. The standard form of \( (x + 7)^2 - 7' \) is: - (A) \( x^2 - 4x + 14 = 0 \) - (B) \( x^2 - 2x - 7 = 0 \) - (C) \( 4x = 7 \) - (D) \( 7 = 4x \) 3. Partial fractions for \( \frac{1}{(x^2 + 4)} \) are: - (A) \( \frac{A}{x+2} + \frac{B}{x-2} \) - (B) \( \frac{Ax + B}{(x^2+4)} \) - (C) \( \frac{B}{x^2 + 4} \) - (D) \( \frac{A + B + C}{x^2 + 4} \) 4. If \( E \cup O = ? \) - (A) N - (B) O - (C) E - (D) All 5. The intersection of \( A \) and \( B \) is: - (A) \( A \cap (B \cup C) \) - (B) \( A \cup B \) - (C) \( (A \cap B) \) - (D) \( A + B \) 6. If set \( A \) has 5 elements and \( B \) has 4, then \( A \times B \) has: - (A) 20 - (B) 15 - (C) 12 - (D) 8 7. The Range of \( R \) is, if \( R = \{(1,3), (2,2), (3,1), (4,4)\} \): - (A) \( \{1, 3, 4\} \) - (B) \( \{2, 3, 4\} \) - (C) \( \{1, 2, 3, 4\} \) - (D) \( \{1, 2, 4\} \) 8. \( 1^{\circ} = \): - (A) \( \frac{\pi}{180} \) - (B) \( \frac{180}{\pi} \) - (C) \( \frac{2\pi}{360} \) - (D) \( 1 \text{ radian} \) 9. What is \( 1 \text{ radian} = ? \) - (A) \( \frac{180}{\pi} \) - (B) \( 60^{\circ} \) - (C) \( \frac{\pi}{180} \) - (D) \( 180^{\circ} \) 10. \( 20^{\circ} = \): - (A) \( \frac{20 \times 360}{180} \) - (B) \( 3600^{\circ} \) - (C) \( 1200^{\circ} \) - (D) \( 630^{\circ} \) 11. A complete circle is divided into: - (A) 90 degrees - (B) 180 degrees - (C) 270 degrees - (D) 360 degrees 12. Any two angles in a segment of a circle are: - (A) Different - (B) Equal - (C) Complementary - (D) Supplementary 13. The line passing through the vertices of a triangle is known as: - (A) None of the above - (B) Circumscribe - (C) Incircle - (D) Escribe 14. The length of two transverse tangents to a pair of circles are: - (A) Zero - (B) Unequal - (C) Overlapping - (D) Equal