Need some help! I don’t get it at all!

Min = -16; max = 0

Step-by-step explanation:

I plotted the inequalities for the constraints (see pic).

Sub in the coordinates of the vertices into the optimisation equation.

z = -(-4) + 5(-4) = -16

z = 0

z = -3 + 5(-1) = -8

Therefore, the max value of z is 0, and the min value is -16

a reflection across the x-axis , followed by the by a reflection across the y-axis , and then a scale dilation of 0.5 .