MAP 4C
Regression WS
Linear/Quadratic/Exponential Regression
1.
2.
a) Use a table of first differences to determine if the
data appears to be linear or non-linear.
b) Use a graphing calculator to create a scatter plot.
c) Use the TI-83 to add a line of best fit to the graph.
d) Determine the equation of the LoBF.
e) Use your equation to predict the length of edging
required for a bed with a diameter of 10 m.
3.
4.
5.
SEE NEXT PAGE FOR GRAPH.
5.
6.
8.
9.
10.
ANSWERS
1.
2.
a) linear
b,c
d)
y = 3.14x
e) 31.4 m
3.
4. a) linear
b) quadratic
c) neither
5.
6.
7. c) Quadratic d) y ≈ -1499.448x + 26808.334x + 356531.561 e) 89 585
8. Yes
9. a) Either
x
x
b) Yes, ratios all about 0.944 c) y ≈ 25.44(0.944) d) 14.3
10. d) y ≈ 143.9(1.03) e) ≈199.191
2