Determine Whether the Rule Describes a Function with the Given

question 5

Short Answer

determine whether the rule describes a function with the given domain and codomain.
- $$G : \mathbf { R } \rightarrow \mathbf { R } , \text { where } G ( x ) = \left\{ \begin{array} { l l } x + 2 & \text { if } x \geq 0 \\x - 1 & \text { if } x \leq 4\end{array} \right.$$

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Definitions:

Retina

The light-sensitive layer of tissue at the back of the inner eye that converts light into neural signals sent to the brain.

Rods

Photoreceptor cells in the retina responsible for vision at low light levels, but not for color vision.

Fovea

A small depression in the retina of the eye where visual acuity is highest due to the concentration of cone cells.

Peripheral Vision

The ability to see objects and movement outside of the direct line of vision, which is essential for activities such as driving.