Vertical Line Test Explained

What is the purpose of the vertical line test?

• To determine if a graph is a function

• To calculate the area under a curve

• To identify the x-intercepts of a graph

• To find the slope of a line

For Graph 1, what conclusion can be drawn using the vertical line test?

• It is not a function

• It has no vertical lines

• It has multiple vertical lines crossing more than once

• It is a function

Why is Graph 2 not considered a function?

• It has no points

• It has only one point

• It has vertical lines that cross more than once

• It is a horizontal line

What is the issue with Graph 3 according to the vertical line test?

• It has no points

• It has no vertical lines

• It has vertical lines that cross more than once

• It is a straight line

In Graph 4, why is it considered a function?

• It is a horizontal line

• It has no vertical lines crossing more than once

• It has vertical lines that cross more than once

• It has no points

What makes Graph 5 not a function?

• It has no points

• It is a straight line

• It has vertical lines that cross more than once

• It has no vertical lines

For Graph 6, what does the vertical line test indicate?

• It is a function

• It has vertical lines that cross more than once

• It has no points

• It is not a function

Which graph has a solid and an empty point that do not cross?

• Graph 1

• Graph 2

• Graph 6

• Graph 4