Which function is a quadratic function? a) y – 3x2 = 3(x2 + 5) + 1 b) y2 – 7x = 2(x2 + 6) + 7 c) y – 2x2 = 6(x3 + 5) – 4 d)y – 5x = 4(x + 5) + 9

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem