Severity: Warning

Message: count(): Parameter must be an array or an object that implements Countable

Filename: controllers/calculator.php

Line Number: 37

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f(x) = x + 4 and domain values are {1, 2, 3} finding the range to the above data gives {5, 6, 7}

9), (4, -6), (3, 8)}

Here the data is given in terms of ordered pairs. There are 5 ordered pairs. In each ordered pair the first value indicates x value and

the second indicates y value.

Domain = {-2, 3, 4, 6}

Range = {-6, 0, 7, 8, 9}

The given relation is not a function because the input 4 has two output values 7 and -6.

Here x can be any real number and y can be any real number.