Question

If (-3, y) lies on the graph of y = (1/2)^x, then y =

Answer 1

`\text{If (-3, y) lies on the graph of}\ \ y = \left((1)/(2)\right)^x, \text{then substitute x = -3}\\\text{ to the equation and calculate y}:\\\\y=\left((1)/(2)\right)^(-3)=(2)^3=8\\\\Answer:\ \boxed{y=8}\\\\Used:\ a^(-n)=(1)/(a^n)`