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Mathematics

Grade10

Easy

Question

James started a small business. Over the days the profit is represented by the function $r left parenthesis x right parenthesis equals square root of x minus 5 end root plus 2$ .
Find the domain of the function r(x).

x ≥ 5
x ≥ 2
x ≥ 0
x ≥ -5

hint Hint:

For f(x) to be defined, the term under the square-root should be greater than or equal to zero.
$x minus 5 greater or equal than 0$

The correct answer is: x ≥ 5

For f(x) to be defined, the term under the square-root should be greater than or equal to zero.
$x minus 5 greater or equal than 0$
$x greater or equal than 5$

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