a) $9 per ticket
b) see the table below
c) y = 9x
d) see the graph below
Step-by-step explanation:
2a) 3 tickets cost $27
if the cost = y
number of tickets = x
Proportional relationship:
y = kx
where k = constant of proportionality
when x = 3, y = $27
27 = k(3)
k = 27/3
k = 9
The constant of proportionality in cost per ticket is $9
b) The table:
c) k = 9
y = kx
The equation becomes:
y = 9x
d) Plotting the values in the table on the graph: