Is the following statement true or false? A parabola opens up when a is positive.
A True
B False

tru3

if a is positive the parabola opens up to the right and it's a negative it opens down

III, I, II

Step-by-step explanation:

With this order, the proof will be:

       Statements                             Reasons

IIIm∠SQV + m∠VQT = m∠SQT    Angle Addition Postulate

Im∠SQT = 180°                     Definition of a Straight Angle

IIm∠SQV + m∠VQT = 180°          Substitution Property of Equality