Precalculus Examples

(2, 2)

$(2, 2)$ ,

(2, 4)

$(2, 4)$

Step 1

Every point in the range is the value of

y

$y$ for at least one point

x

$x$ in the domain, so this is a surjective function.

Surjective function

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⎡ ⎢ ⎣ \begin{matrix} x^{2} & \frac{1}{2} \sqrt{π} & \int x d x \end{matrix} ⎤ ⎥ ⎦

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$