Sketch shifted exponential functions

Question

Answer 1

For y = 2^x - 1, the parent function is y = 2^x. Subtracting 1 moves the function down by 1.

For y = 2^-x - 1, the parent function is y = 2^x. The first transformation, y = 2^-x, will reflect the graph over the y-axis and the second transformation, subtracting 1, will move the result down by 1.