Answer:
B
Step-by-step explanation:
(2,0)
it is B
The vertex is the turning point of the quadratic function.
In this case it lies on the x- axis at (2, 0 ) → B
(-4,2)
There's 6 antinodes here.
fdwef
$20
7 x __=70
2 x ____=___
7 x 10 = 70
2 x 10
=20
