Learn how to find equations of lines, parallel or perpendicular to a given line, passing through a given point, and see examples that walk through sample problems step-by-step for you to improve ...

Learn how to find the tangent line to a curve at a given point, and see examples that walk through sample problems step-by-step for you to improve your math knowledge and skills.

Learn what a line of best fit means and how to make a line of best fit using both Excel and the point slope formula. See examples of making predictions from it.

Learn how to approximate the equation of a line of best fit and make predictions, and see examples that walk through sample problems step-by-step for you to improve your math knowledge and skills.

The equation that best represents the line of best fit for the scatter plot is a straight line, usually represented by the equation y = mx + b. m being the slope and b being the y intercept.

Compare parallel and perpendicular lines with examples in this 5-minute video. Learn how to find them using equations, view them on a graph, and take a quiz.

Learn how to find the slope, y-intercept, and equation for a linear function given a values table, and see examples that walk through sample problems step-by-step for you to improve your math ...

Learn about the line of symmetry and understand how it creates two identical parts. Explore how to find the line of symmetry using equations and graphs.

Discover the secant line definition, examples, and applications. Learn how to use the secant line formula to find the slope and the equation of a secant line.

The equation of a vertical line is given by: x = c where c is a real number. Let's practice writing the equations of vertical and horizontal lines through a given point with the next two examples.