AA Unit 1 Linear Models Review

Front

What is the correlation coefficient (r)?

Back

A statistical measure that describes the strength and direction of a relationship between two variables. Values range from -1 to 1.

Front

What does a slope represent in a linear equation?

Back

The slope indicates the rate of change of the dependent variable (y) with respect to the independent variable (x).

Front

What is the equation of a line in slope-intercept form?

Back

y = mx + b, where m is the slope and b is the y-intercept.

Front

What is interpolation?

Back

Estimating a value within the range of known data points.

Front

What is extrapolation?

Back

Estimating a value outside the range of known data points.

Front

What does a positive correlation indicate?

Back

As one variable increases, the other variable also increases.

Front

What does a negative correlation indicate?

Back

As one variable increases, the other variable decreases.

Front

What is a line of best fit?

Back

A straight line that best represents the data on a scatter plot.

Front

How do you determine the fastest segment in a distance-time graph?

Back

The fastest segment corresponds to the steepest slope on the graph.

Front

What is the y-intercept in a linear equation?

Back

The value of y when x is 0; it represents the starting point of the line on the y-axis.