Unit 4 Vocabulary

Front

What does a strong positive correlation in a graph indicate?

Back

A strong positive correlation indicates that as one variable increases, the other variable also increases.

Front

What does the x-intercept of a linear equation represent?

Back

The x-intercept represents the value of x when y is equal to 0.

Front

What is the line of best fit?

Back

The line of best fit is a straight line that best represents the data on a scatter plot.

Front

How can you determine the x-intercept of a linear equation from a graph?

Back

You can determine the x-intercept by finding the point where the graph intersects the x-axis.

Front

What does a positive association in a graph indicate?

Back

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

Front

What is a linear equation?

Back

A linear equation is an equation that makes a straight line when graphed.

Front

What is the slope of a line?

Back

The slope of a line is a measure of its steepness, calculated as the rise over run.

Front

What does a weak negative correlation in a graph indicate?

Back

A weak negative correlation indicates that as one variable increases, the other variable tends to decrease, but the relationship is not strong.

Front

What is the purpose of the line of best fit in data analysis?

Back

The line of best fit is used to summarize the relationship between variables and make predictions.

Front

How do you find the slope of a line given two points?

Back

The slope is found by taking the difference in y-values divided by the difference in x-values between the two points.