2nd Nine Weeks Math Exam

Front

What is the slope of a vertical line?

Back

Undefined

Front

What is the formula to calculate the slope between two points (x1, y1) and (x2, y2)?

Back

Slope (m) = (y2 - y1) / (x2 - x1)

Front

What does a positive slope indicate about a line?

Back

A positive slope indicates that as x increases, y also increases.

Front

What does a negative slope indicate about a line?

Back

A negative slope indicates that as x increases, y decreases.

Front

What is the slope of the line that passes through the points (10, 1) and (5, 2)?

Back

-1/5

Front

What type of correlation is shown when data points trend upwards from left to right?

Back

Positive correlation

Front

What type of correlation is shown when data points trend downwards from left to right?

Back

Negative correlation

Front

What is an outlier in a data set?

Back

An outlier is a point that is far away from the other data points.

Front

What is the length of the missing side if one side is 5 cm and the hypotenuse is 13 cm?

Back

12 cm (using Pythagorean theorem)

Front

What does a scatter plot show?

Back

A scatter plot shows the relationship between two variables.