First, notice that the given graph is the reflected over the x-axis and y-axis version of an exponential function of the form:

Now, the y-intercept of the graph is -3, therefore, the parent function has

Now, the graph passes through the point (-1,-6), therefore, the parent function passes through (1,6). Solving

for b, we get:

Finally, we reflect the parent function over the x-axis and over the y-axis and get:

Answer:
