Answer:
Graph C shows the line of best fit for the data.
Step-by-step explanation:
The line of Graph C is more centered and even than the other ones
Use gradient formula, rise over run.
y2-y1/x2-x1
Answer:
L = 100
W = 60
Step-by-step explanation:
2L + 2W = 320
-2L + 2W = -80
4W = 240
W = 60
L - W = 40
L - 60 = 40
L = 100
Segment BD equals 12<span />
Answer:
1) For : and , 2) For : and
Step-by-step explanation:
The polynomial is a second-order polynomial of the form . By direct comparison, we construct the following system of equations:
(1)
(2)
By (1) we know that there are a family of pairs such that the system of equations is satisfied. Let suppose that both and are integers. We assume two arbitrary integers for :
1)
2)