Question

TIL. PRE-LAB QUESTIONS - Experiment 8 1. a) Complete the table below. X1/ Xy/ 2 14 8 25 16 b) On graph paper plot y vs. x (appropriately labeling all axes as well as graphing the best fitting line/curve to the data points). c) Is the relationship between the y and x data pairs linear or non-linear? d) Is the relationship between the y and x data pairs direct or inverse? e) Which expression of k (k=y/x or k=xy) corresponds to the relationship that you describe in parts c and d? (i.e. the expression where k is a constant) 2. a) Plot y vs. 1/x for the data in question 1. b) Is the relationship linear or non-linear? c) Is the relationship direct or inverse? 3. a) Complete the table below. Xy/ XXY 24 4 8 8 16 16 32 b) On graph paper plot y vs. x (appropriately labeling all axes as well as graphing the best fitting line/curve to the data points). c) Is the relationship between the y and x data pairs linear or non-linear? d) Is the relationship between the y and x data pairs direct or inverse? e) Which expression of k (k=y/x or k=xy) corresponds to the relationship that you describe in parts c and d? (i.e. the expression where k is a constant)

Answer 1

0.5 1 0.25 0.25 0.125 0.0625 0.0625 0.015625 0.25 16

y VS X Y------> 0 2 4 6 10 12 14 16 18 8 X ------>

c) the graph between y and x is non linear .

d) the relationship between y and x is inverse.since the value of x increases on decreasing the value of y.

e) since the relationship is inverse ,therefore yx= k is the appropriate answer.

y=k/x

therefore yx=k