1 Answer

Ahill · Answer 1 · 2020-04-17T15:54:30+0000

Answer:

See explanation

Explanation:

First image with two graphs:

1. This is a function (Yes)

The domain is
$x\in [-5,5)$

The range is
$y\in (-2,2]$

2 (that graph from the third image). This is not a function (No)

The domain of this relation is
$x\in (-3,5]$

The range is
$y\in (-2,2)$

Second image (parabola):

This is a function (Yes)

The domain is
$x\in (-\infty, \infty)$

The range is
$y\in (-\infty,0]$

Fourth image (cubic parabola):

This is a function (Yes)

The domain is
$x\in (-4,3)$

The range is
$y\in (-2,4)$

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