Answer:

Step-by-step explanation:
x 0 1 2 3 4 5 6 7
y 2 6 12 17 36 72 138 275
The points appear to follow an exponential growth curve.
The regression equation is

The figure below shows the graph of your points and the regression line.
Answer:
0.4
Step-by-step explanation:
Answer:
Use Pythagorean Theorem for each triangle and then add the two sides.
Answer: k - 8
Step-by-step explanation: