Number of Returned Grade 4 Math Modules SO 20 Mode 10 Ramos Macapat Marcos sele Set 1. What is the title of the graph? 2. Whet kind of graph is shown? 3. What section has the most number of returned modules? 4. What section has the least number of returned modules? 5. What is the total number of returned modules?​

The total cost includes the setup cost + per hour cost.

Let, x represents the time and y represents the total cost.

.... (1)

Let Y represent the cost for B's DJ service.

.... (2)

a. Graphing both the equations give the intersection point (solution) as (4,500)

It means for 4 hours, the total cost of both the DJ's is same at $500.

b. Substitution Method.

Plug y = 125x in equation (1)

Hence, the total cost for 4 hours in both the service is $500.

c. Addition method.

Multiply equation (2) by -1

.... Equation (3).

Add euation (1) and equation (3)

Solution: For x = 4, y = 500 ( same as the previous two methods)

For x = 2, equation (1)

For x = 2, equation (2)

Hence, for 2 hours, DJ B would be a better choice since it would charge $250.

For x = 6 hours, equation (1)

For x= 6, equation (2)

For 6 hours, DJ A would be  better option since it charges $650 for 6 hours.