Exploring the 3 1D Vertical Line Test

What is the main purpose of the vertical line test?

• To determine if a graph is a function

• To find the slope of a line

• To calculate the area under a curve

• To identify the x-intercept of a graph

What does it mean if a vertical line intersects a graph more than once?

• The graph represents a function

• The graph does not represent a function

• The graph is a straight line

• The graph is a parabola

In the visualization, what type of line was used to show a function?

• A curved line

• A straight diagonal line

• A vertical line

• A horizontal line

Why is a circle not considered a function?

• A vertical line intersects it more than once

• It has no y-intercept

• It has no x-intercept

• It is not a closed shape

What tool can you use to perform the vertical line test on a graph?

• A ruler

• A pencil

• A protractor

• A compass

What is the result of the vertical line test on a straight line with arrows going forever?

• It is a circle

• It is a function

• It is a parabola

• It is not a function

Which of the following shapes is always not a function?

• A parabola

• A circle

• A hyperbola

• A straight line

What does it indicate if a vertical line hits only one point on a graph?

• The graph is a parabola

• The graph is a circle

• The graph is a function

• The graph is not a function

What happens when you perform the vertical line test on a curvy line that goes forever?

• It is not a function

• It is a function

• It is a circle

• It is a parabola

What is the outcome of the vertical line test on a vertical line itself?

• It is a function

• It is not a function

• It is a circle

• It is a parabola