The answer is -5. -5 times 4 is -20, plus 9 is -11. -5 times 2 is -10, -1 is -11. -5 works.



with that template in mind, let's see,

so, to shift it to the right by 2 units, simply set C = 2.
to stretch it by 2, set A = 1/2.
the smaller A is, the wider it opens, the larger it is, the more it shrinks.
The number -5 is anything but natural number.
It is an integer (Z) ,a rational number (Q) and a real number (R) .
300 mg/tablet
150 tabletsx(300mg/1 tablet)=150x300=45000 mg=45 grams