Lesson 1 · Inverse Function

Composite Function

Optional MathematicsSubject

8 minEstimated read

Activity 1

Following the arrows from A to C

Method

Look at the arrow diagram in which f carries set A = {1, 2, 3, 4} into set B = {2, 3, 4, 5}, and g carries set B into set C = {3, 4, 5, 6}.
Discuss the questions below with your classmates and draw a conclusion.

Discussion

With which member of set B is each member of set A related?
What is the image of each member of set B?
Is the member 1 of set A related to any member of set C?
Can a function be defined between set A and set C?

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