How do you know a quadratic function has exactly one zero?

Which graph has a rate of change of zero

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

Mia’s gross pay is 2953 her deductions total 724.15 what percent if her gross pay is take-home pay