Question

Question 1 (5 points)
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Which description is best for this set of ordered pairs: (1,4) (2,5) (3,6) ?
A) only a relation
B) only a function
C) relation and function
D) a relation but not a function

Answer 1

Since the pairs of y values have singular and unique x values, the following set of points are a function.

Since an increase in one unit in the x value, yields an increase in one unit in the the y value, there exists a relation between these set of points.

$y (x)= x + 3 \\ D_{f} ∈ [1,3]$

Option: C