1. Do all exponential graphs pass through the point (0,1)?

Functions of the type y =ax pass through (0, 1)

y = − ax would pass through the point (0, -1)

2. What happens when a is negative?

Looking at y =(-2)x

As can be seen from column B, the sign of the value changes from positive to negative each time. This makes it impossible to show as a smooth curve.