The GCF to this question is 1x.
Given parameters:
y varies directly as w;
This interpreted implies that as y increases, we increases by a certain factor or amount;
So, y ∝ w
y = kw
where k is the constant of proportionality
Now, given that y = 8 and w = 2
Input in the equation to solve for k;
8 = k x 2
Solving k gives, k = 4
Now to the second part,
if v is directly proportional to w;
v = k w
So v = 4w
The equation that relates v to w is v = 4w
The tenth is the number behind the decimal, so just remember this 5 or more add one more 4 or less let it rest. On a number line just plot 2,852 .
2,000. 2,852. 3,000
<-------------------------------•----------------->
Answer:
f(-3)=0
f(-1)=4
Basically just look at the points they're located