Consider the following list of weights, x
, of children in (kg).

62.4, 58.2, 41.4, 57.9, 33.4, 51.9, 55.1, 41.9, 62.4, 56.4, 55.3, 46.4, 54.9, 47.9, 32.1, 68.4, 57.7, 50.4, 63.3, 34.1, 34.2, 65.7, 41.8, 52.8

Weight
x
(kg) Frequency
30 ≤
x
< 40
a
40 ≤
x
< 45
b
45 ≤
x
< 50
c
50 ≤
x
< 60
d
60 ≤
x
< 70
e

Copy and complete the table to work out the values of
a
to
e
.
a
=

b
=

c
=

d
=

e
=

Which statement best explains whether the table represents a linear or nonlinear function? input (x) output (y) 2 5 4 10 6 15 8 20 it is a linear function because the input values are increasing. it is a nonlinear function because the output values are increasing. it is a linear function because there is a constant rate of change in both the input and output. it is a nonlinear function because there is a constant rate of change in both the input and output.