each individual has a budget line which they follow for expenditures. If the income of the individual increases what is the effect of the budget line?

Answer 1

Your question is from Indifference Curve analysis.
Budget Line always shifts upward or right ward due to increase in income and shifts downward or leftward due to decrease in income.

Answer 2

Each individual has a budget line which they follow for expenditures. if the income of the individual increases what is the effect on the budget line?