What is the equation written in vertex form of a parabola with a vertex of (9, −1) that passes through (7, 7)? A. y = 2(x − 9)2 − 1 B. y = 2(x + 1)2 − 9 C. y = 2(x − 7)2 + 7 D. y = 7(x − 9)2 − 1

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

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9

Brent paid for 6 avocados with a $20.00 bill. he received $10.40 in change. construct and solve an equation can be used to find the price , of each avocados