Range = highest value - lowest = 35 - 12 = 23
2/9 * 36 = 2*4 = 8
we need to get a common denominator
2/3 2/3 * 5/5 = 10/15
6 2/3 = 6 10/15 < 6 12/15
so 6 2/3 < 6 12 /15
9 loljdjdbdbbdhdhdsivsvsg7sg7s7f
You just have to plug in each thing:
So f(0):
3(0)^2 - 4 = -4
so its not A
f(-2) and f(2):
3(-2)^2 - 4
3(2)^2 -4
now we don't even have to calculate these, anything to the power of an even number is a positive number so -2^2 and 2^2 both equal 4
B is correct, so you can do the others if you want to check, but if B is true the others shouldn't be true.