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Functions

Functions

Functions Exercises

Example 1

Is the following relation a function? If not, why?

{(Juan, escuela), (Mariposa, escuela), (Fernando, casa), (Maria, tienda)}

Example 2

Is the following relation a function? If not, why?

{(Juan, escuela), (Mariposa, escuela), (Juan, casa), (Maria, tienda)}

Example 3

Is the following relation a function? If not, why?

{(1, 1), (1, 2), (1, 3)}

Example 4

Is the following relation a function? If not, why?

{(1, 1), (1, 1), (2, 3)}

Example 5

Is the following relation a function? If not, why?

y = 3x2 + 4

Example 6

Is the following relation a function? If not, why?

x = |y|

Example 7

Is the following relation a function? If not, why?

x = y2 where y is positive.

Example 8

Is the following relation a function? If not, why?

x2 = y2

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