The line that most closely approximates the data in a scatter plot. CHAPTER 5 VOCABULARY WORD LIST Best-Fit Line Constant of Variation Direct Variation Linear Extrapolation Linear Interpolation Negative Correlation Parallel Lines Perpendicular Lines Point-Slope Form Positive Correlation Rate of Change Scatter Plot Slope Slope-Intercept Form The line that most closely approximates the data in a scatter plot. BEST-FIT LINE

The number k in equations of the form y = kx. CHAPTER 5 VOCABULARY WORD LIST Best-Fit Line Constant of Variation Direct Variation Linear Extrapolation Linear Interpolation Negative Correlation Parallel Lines Perpendicular Lines Point-Slope Form Positive Correlation Rate of Change Scatter Plot Slope Slope-Intercept Form The number k in equations of the form y = kx. Constant of Variation

An equation of the form y = kx, where k ≠ 0. CHAPTER 5 VOCABULARY WORD LIST Best-Fit Line Constant of Variation Direct Variation Linear Extrapolation Linear Interpolation Negative Correlation Parallel Lines Perpendicular Lines Point-Slope Form Positive Correlation Rate of Change Scatter Plot Slope Slope-Intercept Form An equation of the form y = kx, where k ≠ 0. Direct Variation

CHAPTER 5 VOCABULARY Linear Extrapolation WORD LIST Best-Fit Line Constant of Variation Direct Variation Linear Extrapolation Linear Interpolation Negative Correlation Parallel Lines Perpendicular Lines Point-Slope Form Positive Correlation Rate of Change Scatter Plot Slope Slope-Intercept Form The use of a linear equation to predict values that are outside the range of data. Linear Extrapolation

CHAPTER 5 VOCABULARY Linear Interpolation WORD LIST Best-Fit Line Constant of Variation Direct Variation Linear Extrapolation Linear Interpolation Negative Correlation Parallel Lines Perpendicular Lines Point-Slope Form Positive Correlation Rate of Change Scatter Plot Slope Slope-Intercept Form The use of a linear equation to predict values that are inside of the data range. Linear Interpolation

In a scatter plot, as x increases, y decreases. CHAPTER 5 VOCABULARY WORD LIST Best-Fit Line Constant of Variation Direct Variation Linear Extrapolation Linear Interpolation Negative Correlation Parallel Lines Perpendicular Lines Point-Slope Form Positive Correlation Rate of Change Scatter Plot Slope Slope-Intercept Form In a scatter plot, as x increases, y decreases. Negative Correlation

Lines in the same plane that never intersect and have the same slope. CHAPTER 5 VOCABULARY WORD LIST Best-Fit Line Constant of Variation Direct Variation Linear Extrapolation Linear Interpolation Negative Correlation Parallel Lines Perpendicular Lines Point-Slope Form Positive Correlation Rate of Change Scatter Plot Slope Slope-Intercept Form Lines in the same plane that never intersect and have the same slope. Parallel Lines

Lines that meet to form right angles. CHAPTER 5 VOCABULARY WORD LIST Best-Fit Line Constant of Variation Direct Variation Linear Extrapolation Linear Interpolation Negative Correlation Parallel Lines Perpendicular Lines Point-Slope Form Positive Correlation Rate of Change Scatter Plot Slope Slope-Intercept Form Lines that meet to form right angles. Perpendicular Lines

CHAPTER 5 VOCABULARY Point-Slope Form An equation of the form WORD LIST Best-Fit Line Constant of Variation Direct Variation Linear Extrapolation Linear Interpolation Negative Correlation Parallel Lines Perpendicular Lines Point-Slope Form Positive Correlation Rate of Change Scatter Plot Slope Slope-Intercept Form An equation of the form Y – y1 = m(x – x1) Point-Slope Form

In a scatter plot, as x increases, y increases. CHAPTER 5 VOCABULARY WORD LIST Best-Fit Line Constant of Variation Direct Variation Linear Extrapolation Linear Interpolation Negative Correlation Parallel Lines Perpendicular Lines Point-Slope Form Positive Correlation Rate of Change Scatter Plot Slope Slope-Intercept Form In a scatter plot, as x increases, y increases. Positive Correlation

How a quantity is changing over time. CHAPTER 5 VOCABULARY WORD LIST Best-Fit Line Constant of Variation Direct Variation Linear Extrapolation Linear Interpolation Negative Correlation Parallel Lines Perpendicular Lines Point-Slope Form Positive Correlation Rate of Change Scatter Plot Slope Slope-Intercept Form How a quantity is changing over time. Rate of Change

Two sets of data plotted CHAPTER 5 VOCABULARY WORD LIST Best-Fit Line Constant of Variation Direct Variation Linear Extrapolation Linear Interpolation Negative Correlation Parallel Lines Perpendicular Lines Point-Slope Form Positive Correlation Rate of Change Scatter Plot Slope Slope-Intercept Form Two sets of data plotted as ordered pairs in a coordinate plane. Scatter Plot

CHAPTER 5 VOCABULARY Slope WORD LIST Best-Fit Line Constant of Variation Direct Variation Linear Extrapolation Linear Interpolation Negative Correlation Parallel Lines Perpendicular Lines Point-Slope Form Positive Correlation Rate of Change Scatter Plot Slope Slope-Intercept Form The ratio of the change in the y-coordinates (rise) to the corresponding change in the x-coordinates (run) as you move from one point to another along a line. Slope

CHAPTER 5 VOCABULARY Slope-Intercept Form An equation of the form WORD LIST Best-Fit Line Constant of Variation Direct Variation Linear Extrapolation Linear Interpolation Negative Correlation Parallel Lines Perpendicular Lines Point-Slope Form Positive Correlation Rate of Change Scatter Plot Slope Slope-Intercept Form An equation of the form y = mx + b Slope-Intercept Form