The linear function $z=ax+by$, where $a$ and $b$ are constants $x$ and $y$ are decision variables, which is to maximised or minimised is called an function

Zahida has $31$ days to stitch clothes for a showroom. The blue designs can be sewn at a rate of $4$ units per day while the white ones at a rate of $7$ units per day. The clothes can be up to $96$ units total. The cost for her to do the blue design is Rs. $80$ per unit and that of the white one is Rs. $120$ per unit. Which one of the following can be the linear programming problem to minimize the cost $\left(Z\right)$ for the blue and white design clothes sewn by her for the showroom?

[$b=$ number of units of blue designs,

$w=$ Number of units of white designs]

Write the differences between compiler and interpreter.

The shaded region in the figure is the solution set of the inequations