No a biased sample is not valid
Answer:
Slope of line having points (3,-5) and (2,-2) is 3 and since the slope is positive do it rises. Option C is correct option.
Step-by-step explanation:
The formula calculate to find slope is: 
We are given points (3,-5) and (2,-2) so,

Putting values in formula and finding slope

So, Slope of line having points (3,-5) and (2,-2) is 3 and since the slope is positive do it rises. Option C is correct option.
Answer:
33/4
Step-by-step explanation:
<span>(4x - 3y) • (16x2 + 12xy + 9y2)</span>