Which values for h and k are used to write the function f(x)=x^2+12x+6 in vertex form?
a. h=6, k=36
b. h=−6, k=−36
c. h=6, k=30
d h=−6, k=−30

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte