Graph the line that represents a proportional relationship between
y
yy and
x
xx where the unit rate of change of
y
yy with respect to
x
xx is
 
4
5
5
4

start fraction, 4, divided by, 5, end fraction . in other words, a change of
1
11 unit in
x
xx corresponds to a change of
 
4
5
5
4

start fraction, 4, divided by, 5, end fraction units in
y
yy.