Answer:7.15
Step-by-step explanation: You multiply it
Let g(x,y) be the midpoint of the segment ef;
So, x = (4+1)/2; then x = 5/2;
y = (-4+7)/2; then y = 3/2;
Finally, g(5/2,3/2).
The first photo as it has the line of best fit.(my opinion)
The answer should be 5.24 x 10^-1
The answer to your question B. 40.