Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional axis.

Front

What does the slope of a line represent in a scatter plot?

Back

The slope represents the rate of change between the two variables; a positive slope indicates a positive relationship, while a negative slope indicates a negative relationship.

Front

What is the y-intercept in the equation y=mx+b?

Back

The y-intercept is the value of y when x is 0, represented by 'b' in the equation.

Front

What does a positive correlation in a scatter plot indicate?

Back

A positive correlation indicates that as one variable increases, the other variable also tends to increase.

Front

What does a negative correlation in a scatter plot indicate?

Back

A negative correlation indicates that as one variable increases, the other variable tends to decrease.

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

How do you determine the slope from the equation y=4x+3?

Back

The slope is the coefficient of x, which is 4.

Front

What is the purpose of a trend line in a scatter plot?

Back

A trend line helps to visualize the overall direction of the data points and can indicate the strength and direction of the relationship between the variables.

Front

What does 'm' represent in the equation y=mx+b?

Back

In the equation y=mx+b, 'm' represents the slope of the line.

Front

What type of relationship does Graph C show if it slopes downwards?

Back

Graph C shows a negative relationship.