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## Algebra 2

### Unit 5: Lesson 4

Putting it all together

# Polynomial graphs: FAQ

Frequently asked questions about polynomial graphs

## What are the "zeros" of a polynomial?

The zeros of a polynomial are the x-values where the polynomial crosses the x-axis. In other words, they're the points where the polynomial equals 0.

## What do "positive and negative intervals" mean in the context of polynomials?

Polynomials can be positive or negative in certain intervals. For example, a polynomial might be positive for all x-values less than minus, 2, negative between minus, 2 and 3, and positive again for all x-values greater than 3.

## What is "end behavior" when it comes to polynomials?

The end behavior of a polynomial tells you what the polynomial "looks like" as it approaches positive and negative infinity. For example, if a polynomial "increases without bound" as x approaches positive infinity, it means the polynomial keeps getting higher and higher on the graph the further to the right you go.

## Where are these concepts used in the real world?

Polynomials are used in a variety of real-world applications, from engineering to economics. For example, in physics, polynomials can be used to model the trajectory of an object in motion. Understanding the zeros, positive and negative intervals, and end behavior of a polynomial can help us understand the shape of the graph and make predictions about the system it models.

## Want to join the conversation?

• Who came up with math
(7 votes)
• The first modern counting and measuring system was developed by the Sumerians in 3100 BC and the first fully functional 10-number system was developed among the Egyptians in 2700 BC. As the years went on, newer forms of math were developed with mathematicians like George Peacock and Charles Babbage each making his own contribution to the math world.
(0 votes)
• You need math for the future is what people tell me all the time

Why do we have to do these problems for math??
(2 votes)
• Polynomials are used in a variety of real-world applications, from engineering to economics. For example, in physics, polynomials can be used to model the trajectory of an object in motion. Understanding the zeros, positive and
(0 votes)
• whyd theyput ;etters in math
(0 votes)
• To make it suitable for real-life applications.
(0 votes)