When consumption function starts from y axis, it indicates that?

When the consumption function starts from the y-axis, it indicates that: Consumption is positive when income is zero

This implies that even when income is zero, there is some level of consumption. In economic terms, it suggests that individuals or households have some baseline consumption (non-zero autonomous consumption) even in the absence of income. This is often represented by the intercept of the consumption function on the y-axis.