Finite Math Examples

$y = 2 + \sqrt{1 x}$

Step 1

Set the radicand in $\sqrt{1 x}$ greater than or equal to $0$ to find where the expression is defined.

$1 x \geq 0$

Step 2

Multiply $x$ by $1$ .

$x \geq 0$

Step 3

The domain is all values of $x$ that make the expression defined.

Interval Notation:

$[0, \infty)$

Set-Builder Notation:

${x | x \geq 0}$

Step 4

The range is the set of all valid $y$ values. Use the graph to find the range.

Interval Notation:

$[2, \infty)$

Set-Builder Notation:

${y | y \geq 2}$

Step 5

Determine the domain and range.

Domain: $[0, \infty), {x | x \geq 0}$

Range: $[2, \infty), {y | y \geq 2}$

Step 6