00:01
So i've drawn a sketch of the graph that we're looking at in this problem.
00:04
And the important thing to note here is that we have this horizontal asymptote at y is equal to 1.
00:09
So what that means is that as we go farther and farther in the negative x direction, our graph is getting closer and closer to 1.
00:17
So if we have an exponential function that has a horizontal asymptote at y is equal to 1, that means that instead of our horizontal asymptote usually being at y is equal to 0, if it's just a function of the form y is equal to c times a raised to the power of x.
00:34
In this case, we would have a horizontal asymptote at y is equal to zero.
00:39
But since we have one at y is equal to one, we know that we're going to have either one plus c times a raise the x or one minus.
00:50
So this is either going to be plus or minus c raised, c times a raise the power of x.
00:57
So the next point that we can look at is this point at x is equal to zero...