The x in y = mx + b represents the input, C.
A
distributive property
-4x - y + 2x - 6y
Combine like terms
-2x - 7y
we know that
p^2 is the the frequency of hba homozygote
we are given
frequency of hba homozygotes is 0.1
so,
p^2 =frequency of hba homozygotes
we can plug values
and we get
..............Answer