(q4) which values of a and b in the exponential function y = a (bx) would result in the following graph?

second option.

Step-by-step explanation:

By definition, you know that:

You can see in the graph that the interception with the y-axis is at -1.

Therefore, in that point: x=0 and y=-2

Substitute into the function and solve for a:

Now, choose any point of the function and substitute this point and the value of a into the function and solve for b. Then you obtain:

Point (2,-4)