Chapter 3 focuses on graphing, starting with reading bar and line graphs, and understanding the rectangular coordinate system. It covers creating scatter diagrams and using T-charts to solve linear equations. The chapter also introduces the slope-intercept form of linear equations and provides an example of straight-line depreciation. The video emphasizes the importance of understanding these concepts for future math courses.

What is the main focus of Chapter 3?

• Algebraic equations

• Graphing and the rectangular coordinate system

• Calculus

• Statistics

In a bar graph, what is typically represented on the vertical axis?

• Time

• Temperature

• Distance

• Rate or amount

Who developed the rectangular coordinate system?

• Isaac Newton

• Albert Einstein

• René Descartes

• René Duvall

In which quadrant are both x and y coordinates positive?

• Quadrant IV

• Quadrant II

• Quadrant III

• Quadrant I

What is a scatter diagram used for?

• To show trends over time

• To calculate averages

• To solve equations

• To measure angles

What is the first step in determining if an ordered pair is a solution?

• Draw a line

• Substitute the values into the equation

• Use a calculator

• Graph the pair

What is a T-chart used for?

• To organize data and plot points

• To calculate derivatives

• To measure angles

• To solve quadratic equations

What does the slope-intercept form of a linear equation look like?

• y = mx + b

• ax^2 + bx + c = 0

• x^2 + y^2 = r^2

• a^2 + b^2 = c^2

What is the term for the decrease in value of an asset over time?

• Inflation

• Appreciation

• Depreciation

• Deflation