Consumer Behavior $-$ End of Chapter Problem

For Maahir, shampoo $($S$)$ and conditioner $($C$)$ are perfect complements. He uses $1$ pump of shampoo and $1$ pump of conditioner every time he washes his hair.

a$.$ What do Maahir's indifference curves for shampoo

and conditioner look like?

They are typical indifference curves that are convex

to the origin.

They are L$-$shaped.

They are concave to the origin.

They are linear.

b$.$ Assume that shampoo costs $$0\mathrm{.}40$ per pump and conditioner costs $$0\mathrm{.}20$ per pump. Assuming Maahir's budget for shampoo and conditioner is $$12,$ use the space below to write an equation for his budget constraint. In your equation, use $S$ for shampoo and $C$ for conditioner. You must use capital letters for $S$ and $C$ within the budget constraint; otherwise, your answer will be marked as incorrect.

$BC$ :

$=$$$12$

c$.$ Given the information from parts a and b$,$ what is Maahir's optimal bundle of shampoo and conditioner?