square roots 67 videos

Pythagorean Theorem Proofs
Trigonometry Pythagorean 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 
3x3 Determinants
Precalculus Systems of Linear Equations and Matrices
How to compute the determinant of a 3x3 square matrix using minors by expanding along the top row.
square matrices determinant 3x3 determinant minor of an element 
The Transformation y = f(bx)
Precalculus Introduction to Functions
How determine what transformation the graph y = f(bx) represents when b > 1.
the square root function horizontal shift horizontal compression compression factor endpoint 
454590 Triangles
Geometry Pythagorean Theorem
How to find the length of a leg or hypotenuse in a 454590 triangle using the Pythagorean Theorem.
isosceles right triangle leg hypotenuse Pythagorean theorem square root 
454590 Triangles
Trigonometry Pythagorean Theorem
How to find the length of a leg or hypotenuse in a 454590 triangle using the Pythagorean Theorem.
isosceles right triangle leg hypotenuse Pythagorean theorem square root 
Overview of the Different Methods of Solving a Quadratic Equation
Algebra 2 Quadratic Equations and Inequalities
How to know which method to use when solving a quadratic equation.
factoring square root property completing the square quadratic formula pros cons comparison 
Multiplying Polynomials: Special Cases
Algebra Polynomials
How to recognize special products of polynomials.
perfect square trinomial difference of perfect squares binomial 
The Discriminant of a Quadratic Equation
Algebra 2 Quadratic Equations and Inequalities
How to use the discriminant to know the number and type of solutions to a quadratic.
discriminant type of solution number of solutions type of roots number of roots 
Parametric Equations and Motion
Precalculus Vectors and Parametric Equations
How to graph a parametric curve, and how to eliminate the parameter to obtain a rectangular equation for the curve.
position time parametric equations path rectangular equation eliminating the parameter square root function direction of motion 
Rhombus Properties
Geometry Polygons
How to define a rhombus and compare it to a square and rectangle.
rhombus congruent sides parallelogram angle bisectors perpendicular bisectors rectangles diagonals 
Deriving the Quadratic Formula
Algebra 2 Quadratic Equations and Inequalities
How to derive the quadratic formula by completing the square.
functions domain parent functions inequalities interval notation 
Evaluating Rational Exponents
Algebra 2 Roots and Radicals
How to evaluate a fractional exponent two ways.
evaluating rational exponents power over root 
Rational Exponents with Negative Coefficients
Algebra 2 Roots and Radicals
How to know when a negative coefficient is associated with power.
evaluating rational exponents power over root negative 
The Identity Matrix
Precalculus Systems of Linear Equations and Matrices
How to determine the identity matrix of order n.
matrices square matrices the identity matrix matrix multiplication 
Reflectional Symmetry
Geometry Transformations
How to identify and describe reflectional symmetry.
symmetry figure maps isometry mirror image square equilateral triangle 
Plant Structure
Biology Plants
The structure of plants.
plant structure stem structure epidermis cortex endodermis vascular tissue monocots stem roots vascular tissue 
Plant Adaptation
Biology Plants
Explanation of plant adaptation.
plant adaptations roots vascular tissue seed cuticle flowers fruit mutualistic relationship protective chemicals