Question

Najat is selling raffle tickets. The table shows the cost (in dollars) of buying different numbers of tickets.

Using x for the number of tickets and y for the cost, do the following.

Write an equation relating x and y

Answer 1

The equation relating x and y is: y=4x

Explanation:

Let x represent number of tickets

and y represent cost

a) Plot the ordered pairs

The ordered pairs (1,4),(2,8),(3,12),(4,16) is plotted in figure attached.

b) Write an equation relating x and y

y= 4x

Now checking by putting values of x to see, if we get values of y

if x=1, then y=4x => y=4*1 =>y=4

if x=2 then y=4x => y=4*2 =>y=8

if x=3 then y=4x => y=4*3 =>y=12

So, we get same values as table.

The equation relating x and y is: y=4x