good evening! Can someone please answer this, ill give you brainliest and your earning 50 points. Would be very appreciated.

So we know

Put what's given

Now put back

Graph attached

General form of an exponential function:  

where:

If  then it is an increasing function

If then it is a decreasing function

Also

Given:

If we want the function to be decreasing, then as is negative, we need to make the overall function decreasing.  

Let :

If we want the function to be increasing, then as is negative, we need to make the overall function increasing.

Let :

However, it doesn't matter whether the function is increasing or decreasing as the range of both of the above given functions is < 0 as is negative and is positive.