Question

Question 8 (Essay Worth 2 points)

Hank is throwing a surprise party. The party costs $20 per person. Create an equation and graph to represent the relationship between the cost of the party and the number of friends attending.

Complete the following table:

Number of friends (f) 5 10 15 20
Cost of party (c) 100 200 300 400

Plots the points from the table onto the graph.

Answer 1

No fixed entry fee

• Cost is 20$ per person

If no of persons be x

The expression is

• y=20x

Verification:-

• 100=5(20)=100

Hence verified

Answer 2

Let f be the number of friends

Let c be the cost of the party

As (f) is the independent variable, the number of friends will be along the x-axis.

As (c) is the dependent variable, the cost of the party will be along the y-axis.

If the cost of the party is $20 per person, then the equation to represent the relationship is:

c = 20 f

**see attached graph complete with plotted points**