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.