Answer:
1) not a function
2) a function
3) function
4) function
5) not a function
6) function
7) function
8) function
9) not a function
Step-by-step explanation:
draw a line parralel to y axis,if they cut the graph of the function at two or more points then it's not a function or otherwise function.
✌️;)
Answer
R ~ 0.03
Explanation
For Pearson’s Product Correlation Coefficient, an R value can only be in the range of -1 to +1.
-1 = perfect negative correlation
+1 = Perfect positive correlation
Values in between and approaching 0 means there is weak to no correlation.
The range of a linear function can be found by evaluating the end-points, namely [-2,2] (assuming [-2,2] interval notation meaning from -2 to 2 was intended).
f(-2)=-6-12=-18
f(2)=6-12=-6
so the range of function f(x)=3x-12 for the domain [-2,2] is [-18,-6].
If the domain is actually {-2,2}, meaning only x=-2 and x=2, then the range would be {-18,-6}, i.e. exactly two points.