# system of equations   190 videos

• #### Position, Velocity and Acceleration

##### CalculusAntiderivatives and Differential Equations

How to solve position, velocity and acceleration problems using differentiation equations.

differential equations derivatives position velocity acceleration
• #### Basic Polynomial Graphs

##### Algebra 2Polynomials

How to graph a first degree polynomial

linear equation
• #### Vectors and Planes

##### PrecalculusVectors and Parametric Equations

How to find a vector normal (perpendicular) to a plane given an equation for the plane.

normal vector position vector perpendicular vectors planes the equation of a plane
• #### Converting from Polar Coordinates to Rectangular

##### PrecalculusPolar Coordinates and Complex Numbers

How to convert a polar equation into rectangular form.

polar coordinates rectangular coordinates polar equations lines circles Pythagorean theorem sine cosine tangent
• #### Writing an Equation to Describe a Table

##### AlgebraGraphs and Functions

How to write a function to describe a table of values.

function slope y intercept pattern
• #### Intercepts of Linear Equations

##### AlgebraLinear Equations and Their Graphs

How to work with x an y intercepts graphically or algebraically.

x intercept y intercept y=mx+b

• #### The Discriminant of a Quadratic Equation

##### Algebra 2Quadratic 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
• #### Neurons

##### BiologyThe Human Body

The structure and function of nerve cells.

neurons nerve cells nervous system
• #### Families of Polar Curves: Conic Sections

##### PrecalculusPolar Coordinates and Complex Numbers

How to describe the polar equations of conic sections.

polar graph polar equation polar curve conic sections focus origin pole parabola symmetric about the x axis parabola vertex
• #### Parametrizing a Circle

##### PrecalculusVectors and Parametric Equations

How to write the parametric equations of a circle centered at (0,0) with radius r, oriented counter-clockwise.

the unit circle cosine sine parametrization parametric equations circle counter clockwise
• #### Vertical and Horizontal Shifts of Quadratic Graphs

How to graph parabolas with horizontal and vertical shifts without making a table of values.

• #### Symmetry of Polar Graphs

##### PrecalculusPolar Coordinates and Complex Numbers

How to determine if the graph of a polar equation is symmetric about the x-axis.

polar graph polar equation symmetry reflection x axis symmetric about the x axis
• #### Applied Linear Equations: Mixture Problem

##### PrecalculusLinear Equations and Inequalities

How to solve a mixture problem when the size difference between the two containers is known.

word problem mixture
• #### Applied Linear Equations: Investment Problem

##### PrecalculusLinear Equations and Inequalities

How to solve an interest problem when given the total amount deposited.

word problem investment interest
• #### Applied Linear Equations: Tax Problem

##### PrecalculusLinear Equations and Inequalities

How to solve a word problem about finding the tax on a purchase.

word problem tax
• #### Applied Linear Equations: Distance Problem

##### PrecalculusLinear Equations and Inequalities

How to find the speed of transit when the time of two different legs is known.

distance rate time word problem
• #### Applied Linear Equations: Collection Problem

##### PrecalculusLinear Equations and Inequalities

How to solve a word problem about how many dimes and quarters it takes to make a certain denomination.

collection change coins dimes quarter word problem denomination