# plus or minus   6 videos

• #### Solving a Quadratic by Completing the Square

##### Algebra 2Quadratic Equations and Inequalities

How to complete the square.

square root property completing the square plus or minus

How to know when to include a plus and minus on a square root problem.

simplifying square roots
• #### Limits and End Behavior

##### CalculusLimits and Continuity

How to evaluate the limit of a function as x goes to infinity (or minus infinity), and how to determine the horizontal asymptote of its graph.

limits rational functions limit at infinity limit at negative infinity horizontal asymptotes end behavior
• #### Optimization Using the First Derivative Test

##### CalculusApplications of the Derivative

How to evaluate the limit of a function as x goes to infinity (or minus infinity), and how to determine the horizontal asymptote of its graph.

• #### Pythagorean Theorem Proofs

##### TrigonometryPythagorean Theorem

How to prove the Pythagorean Theorem using Algebra to show the area of the smaller square plus the area of four triangles is equal to the area of the larger square.

right triangle area of a square binomial squared area of a triangle side leg hypotenuse
• #### Pythagorean Theorem Proofs

##### GeometryPythagorean Theorem

How to prove the Pythagorean Theorem using Algebra to show the area of the smaller square plus the area of four triangles is equal to the area of the larger square.

right triangle area of a square binomial squared area of a triangle side leg hypotenuse