Answer: A
Step-by-step explanation:
I just took the USATESTPREP quiz and that is the answer.
Answer:
Whats that is that an question?
Go to math-way :) it will answer it
21a + 9 = 0 that is the answer good luck
Its the shape of graph. Linear are straight lines. Quadratics have a certain shape. Look up quadratic function on google.