1 Functions f and g are defined for xeR by:
f:x 3x - 1
g:X 5x - x2
Express gf(x) in the form a - b(x - c)2, where a, b and c are constants.

Determine the fraction of total interest owed. after the fourth month of a 12-month loan: the numerator is: {(n + ) + (n + ) + (n + ) + (n + )} = , and the denominator is: {(n) + (n + 1) + + (n + )} = . therefore, the fraction is numerator/denominator (to the nearest tenth) =