Question

A value of a certain stock went up by 12% . Which functions can be used to find the current value of the stock that has an original value of x ? You may choose more than one correct answer. new value = original value + .12 f(x) = 1.12x f(x) = x + .12 new value = original value + .12(original value)

Answer 1

Let x = original value
12% = .12                    % means divide by 100
.12x = increase amount

f(x) = 1x + .12x
f(x) = 1.12x