Please help.

B

Step-by-step explanation:

Given

y = ax² + bx + c

• If a > 0 then parabola opens up

• If a < 0 then parabola opens down

If a = > 0 then parabola opens up not down

Thus B  is not true

6, 10

9, -13

12, -21

18, -23

step-by-step explanation:

you just add 6 to the x-coordinate and subtract 10 from the y-coordinate.