Thread: econ how to draw a budget line for perfect complements

Goods xa and xb have the utility function is {min} 2xa, xb income is 2 dollars and price for both goods is 0.2

How do I write the ordinary demand function and how do I draw the budget line?? Also when the price of good xa falls to 0.1 how do I rotate the budget line correctly? I need to calculate income effect as well if any one knows how to do any of these please help!

Thanks!