Algebra Concepts and Connections Review

Which relationship is an example of causation?

• Running longer increases the number of calories burned.

• The more education a person has, the higher their income.

• Students who watch a lot of television will have lower grades.

• College students with higher entrance exam scores also have higher grades.

What is the equation of the line that contains the points (3, 5) and (7, 9)?

Which of the following equations has a slope of −4 and goes through the point (−3, 6)?

Given a line that has a y-intercept of 6 and an x-intercept of -2, write an equation for the line.

The table above shows the results of an experiment.

Which is the best equation of a line of best fit for the data shown in the table?

Tags

CCSS.8.EE.B.5

The data in the table can be entered into a calculator to determine a linear equation of best fit where x represents the number of years with a company and y represents an employee’s salary in dollars.

What conclusion can be drawn from the correlation coefficient associated with this linear equation?

• There is a strong negative correlation between the variables.

• There is a strong positive correlation between the variables.

• There is a weak negative correlation between the variables.

• There is a weak positive correlation between the variables.

Which expression below best describes the graph above?

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which is the equation of a line that has a slope of zero and goes through (3,7)?

Which of the following equations represents a line perpendicular to the graph of the equation y = 5x–2 and passes through the point (5,–3)?