Identify the Graph of a Real World Situation | 8.EE.B.5

The video tutorial guides students through identifying the correct graph that represents a real-world situation involving the cost of pens. The teacher explains the problem, analyzes four graphs, and uses the concept of slope and origin to eliminate incorrect graphs. The correct graph is identified by writing an equation and verifying it against the graphs. The lesson concludes with a summary of the key points.

What is the cost of each pen at the school store?

• $2.00

• $0.50

• $1.50

• $1.00

Why must the correct graph start at the origin (0,0)?

• Because the graph must pass through all points

• Because the cost of zero pens is zero dollars

• Because the graph must be a straight line

• Because the graph must be a curve

Which graph can be eliminated if it does not start at the origin?

• Graph D

• Graph C

• Graph B

• Graph A

What is the equation used to represent the cost of pens?

• Y = 1.50 + X

• Y = 1.50X

• Y = X + 1.50

• Y = X/1.50

How much does one pen cost according to the correct graph?

• Less than $1.00

• Exactly $1.00

• Exactly $1.50

• More than $1.50