Question

Please help me I dont get this.

Use the vertical-line test to determine whether the relation is a function. If not, identify two points a vertical line would pass through.

Answer 1

The vertical line test is that it can only pass once once on the left and once on the right.

Answer 2

If I remember correctly.

Answer 3

Like this is not a function, at all.

Answer 4

vertical line cuts this graph twice
not a function because one number on the \(x\) axis corresponds to two different \(y\) values

Answer 5

it is not a function and from given graph the two points are y=4 and y= -4

Answer 6

Pretty much. We know that a domain cannot have two different range so this test basically just proves it on a graph.

Answer 7

Aww I was so close. You said it before x_x

Answer 8

thanks guys