the number line   19 videos

• Finding the Equation of a Graphed Line

AlgebraLinear Equations and Their Graphs

How to write the equation of a graphed line.

point slope form slope intercept form slope y intercept
• Graphing Lines using Intercepts

AlgebraLinear Equations and Their Graphs

How to graph a line using the x and y intercepts.

x intercept y intercept standard form
• Parallel and Perpendicular Lines

AlgebraLinear Equations and Their Graphs

How to determine whether lines are parallel, perpendicular, or neither.

parallel perpendicular point slope form intersect right angle
• How to Graph a Line using y=mx+b

AlgebraLinear Equations and Their Graphs

How to graph a line.

table of values y intercept slope slope intercept form point slope form x intercept
• Finding the Slope of a Line from a Graph

AlgebraLinear Equations and Their Graphs

How to find the slope of a line if given a graph.

slope change ratio fraction slope triangle
• Finding the Slope of a Line from an Equation

AlgebraLinear Equations and Their Graphs

How to use the slope-intercept form of a line.

slope slope intercept form y intercept
• Graphing Lines using a Table of Values

AlgebraLinear Equations and Their Graphs

How to graph a line by making a table of values.

table of values substitution
• Definitions and Applications of Absolute Value

AlgebraAbsolute Value

What is absolute value?

absolute value number line distance
• Scatterplots and Correlations

AlgebraIntroduction to Statistics

How to identify positive correlations, negative correlations, or no correlation between two variables.

scatterplot correlation trend line line of best fit
• The Discriminant

How to calculate and interpret the discriminant of a quadratic equation.

discriminant x intercepts number of solutions
• Finding the Slope of a Line from 2 Points

AlgebraLinear Equations and Their Graphs

How to find the slope if you're given 2 points.

slope point ratio
• Cube Roots

How to find the cube root of a number.

cube root
• Defining Variables

AlgebraPre-Algebra

How to write variables to describe numbers.

variable
• Point-Slope Form of Linear Equations

AlgebraLinear Equations and Their Graphs

How to write the equation of a line in point-slope form.

slope equation
• Mean

AlgebraIntroduction to Statistics

How to calculate the mean, or average, of a list of numbers.

mean measure of center average
• Writing Equations in Slope-Intercept Form

AlgebraLinear Equations and Their Graphs

How to write the equation of a line using slope-intercept form.

slope y intercept slope intercept form
• Coin Word Problems

AlgebraWord Problems Using Systems of Equations

How to solve word problems about values and number of coins.

coins system of equations substitution
• Sum of Digits

AlgebraWord Problems Using Systems of Equations

How to solve a problem when asked to switch the digits of a 2-digit number.

sum digits word problem
• Scientific Notation

AlgebraExponents

How to move between scientific notation and standard notation of numbers.

power scientific notation