<h3><u>Out of the four options, the letter B is a function.</u></h3>
A function cannot have an x value with two different listed y terms.
B is the only option that does not repeat x terms.
It means it is asking for a large number so it can represent more of the population because the larger the number the more percent of population so the answer would be A
The equation is <span>f(x) = 2x5 - 9x4 + 12x3 - 12x2 + 10x - 3 = 0
remark:
the sum of coefficients is = 2-9+12-12+10-3=-7+7=0, so a=1 is a zero of f
f can be written as </span>f(x) = (x-1)Q(x), and f(x) / (x-1)= Q(x)
after euclid's division
Q(x) = 2x4 - 7x3 + 5x2 - 7x +3
so for finding the other roots, making Q(x) for product of factors is a must
