Which of the following gives the correct intercept points and vertex point for the function f(x) = x2 + 5x + 6? A. y-intercept: (0,-6); vertex point: (-72,-0.5); x-intercepts: (2,0) and (-3,0)

B. y-intercept: (0,6); vertex point: (-52,-1.25); x-intercepts: (2,0) and (3,0)

C. y-intercept: (0,-6); vertex point: (-5/2,-0.25); x-intercepts: (-2,0) and (3,0)

D. y-intercept: (0,6); vertex point: (-52,-0.25); x-intercepts: (-2,0) and (-3,0)

Given: ab ≅ cd and ad ≅ bc prove: abcd is a parallelogram. statements reasons 1. ab ≅ cd; ad ≅ bc 1. given 2. ac ≅ ac 2. reflexive property 3. △adc ≅ △cba 3. ? 4. ∠dac ≅ ∠bca; ∠acd ≅ ∠cab 4. cpctc 5. ∠dac and ∠bca are alt. int. ∠s; ∠acd and ∠cab are alt. int. ∠s 5. definition of alternate interior angles 6. ab ∥ cd; ad ∥ bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3? triangle angle sum theorem sas congruency theorem sss congruency theorem cpctc