Midweek Review A.4a, A.4b, A.4c

Front

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

Back

Front

What does the slope of a line represent?

Back

The slope of a line represents the rate of change of y with respect to x. It indicates how steep the line is.

Front

How do you find the y-intercept of a linear equation?

Back

Front

What is a line of best fit?

Back

A line of best fit is a straight line that best represents the data on a scatter plot, minimizing the distance between the line and the data points.

Front

What does a positive slope indicate about a line?

Back

A positive slope indicates that as x increases, y also increases, showing a direct relationship between the two variables.

Front

What does a negative slope indicate about a line?

Back

A negative slope indicates that as x increases, y decreases, showing an inverse relationship between the two variables.

Front

What is the range of a function?

Back

The range of a function is the set of all possible output values (y-values) that the function can produce.

Front

What does a correlation coefficient (r) of 0.3 indicate?

Back

A correlation coefficient of 0.3 indicates a weak positive correlation between the two variables.

Front

How do you determine the line of best fit using data points?

Back

To determine the line of best fit, you can use methods such as least squares regression to calculate the slope and y-intercept.

Front

What is the significance of the y-intercept in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis, representing the value of y when x is zero.