Which answer describes the transformation of f(x)=x2−1 to g(x)=(x+4)2−1 ?
a. a horizontal translation 4 units to the left
b. a vertical stretch by a factor of 4
c. a vertical translation 4 units down
d. a horizontal translation 4 units to the right

Gia opened two savings accounts at two different banks. one account earns an annual 3.4% simple interest, and the other earns half as much. if she deposited $500 in each account, how much total interest will she have earned in 5 years? a. $34.00 b. $25.50 c. $51.00 d. $510.00