Question

Anybody, please help me. This is a piecewise function?

Answer 1

See below.

Explanation:

Attached a plot showing

`color(green)("Unit cost as a quantity function (not in scale)" )`
`color(blue)("Purchasing amount as a quantity function (in scale)")`
`color(red)("Your budget (in scale)")`

Note the discontinuity at `n = 30`

This behavior is not desirable since buying 34 units is cheaper than buying 30