In the case of exponential functions, the graph is shifted when a constant is added to the exponent of the constant. The original equation, f(x) is: f(x) = (1/2)ˣ Now, when horizontal shifting is occurring, the equation is: y = Cˣ⁺ᵃ If a is positive, the graph shifts to the lefts and the shift is equal to a units. If a is negative, the graph shifts to the right and the shift is equal to a units. Therefore, to shift the graph 3 units to the left:
