Online Math Jumpstart
Welcome! If you are looking for resources to review concepts vital to a strong start in Precalculus & Calculus, I have created the following videos to help. For improved accessibility, I am working to edit the captions on the videos.
If you are accessing these videos to help you prepare for the UC Davis Math Placement Exam, you can find more information about the testing windows each term here: Math Placement Requirement
Real Numbers
Finding Common Denominators: Adding Fractions
Finding Common Denominators: Ordering Fractions
Dividing Fractions (including an example with a mixed number)
Converting Percents into Decimals
Converting Decimals into Percents
Finding the Sale Price Given the Original Price
Finding Original Price Given the Sale Price & Percent Discount
Word Problems Involving Proportions: Part 1
Word Problems Involving Proportions: Part 2
Finding Simple Interest Without a Calculator
Signed Fraction Addition or Subtraction
Signed Fraction Multiplication
Exponents and Signed Fractions
Properties of Exponents
Evaluating an Expression with a Negative Exponent
Rewriting an Algebraic Expression Without a Negative Exponent
Product Rule with Negative Exponents
Quotient of Expressions Involving Exponents
Quotient Rule with Negative Exponents
Power Rules with Positive Exponents
Factoring
Greatest Common Factor of Two Monomials
Factoring Out a Monomial from a Polynomial: Video 1
Factoring Out a Monomial from a Polynomial: Video 2
Factoring a Quadratic with Leading Coefficient 1
Factoring a Quadratic with Leading Coefficient Greater than 1
Factoring a Product of a Quadratic Trinomial and a Monomial
Factoring a Polynomial by Grouping
Quadratic Equations
Solving an Equation Written in Factored Form
Finding the Roots of a Quadratic Equation
Finding the Roots of a Quadratic Equation Part 2
Solving a Quadratic Equation Needing Simplification
Solving a Quadratic Equation Using the Square Root Property
Solving a Quadratic Equation by Completing the Square
Applying the Quadratic Formula (warning...Jennifer sings in this video!)
Solving a Quadratic Inequality Written in Factored Form
Solving a Quadratic Inequality
Lines and Systems
Graphing Lines
Determine whether given points lie on a line
Graphing a Line Given its x & y Intercepts
Graphing a Line Given its Equation in Slope-Intercept Form
Graphing a Line Given its Equation in Slope-Intercept Form Part 2
Graphing a Line Given its Equation in Standard Form
Graphing a Vertical or Horizontal Line
Equations of Lines
Finding x- and y-intercepts of a line given the equation
Find Slope Given Two Points on the Line
Writing an equation of a line given the y-intercept and another point
Writing the Equation of a Line Given the Slope and a Point
Writing the Equation of the Line Through Two Given Points
Writing the Equation of the Line Through Two Given Points: Example 2
Finding Slopes of Lines Parallel to a Line
Finding Slopes of Lines Perpendicular to a Line
Writing Equations of Lines Parallel to a Given Line Through a Point
Writing Equations of Lines Perpendicular to a Given Line Through a Point
Solving Systems of Linear Equations
Graphically Solving a System of Linear Equations
Solving a System of Linear Equations Using Substitution (One Intersection Point)
Solving a System of Linear Equations Using Substitution (Parallel Lines)
Solving a System of Linear Equations Using Substitution (Same Line)
Solving a System of Linear Equations Using Elimination
Rational Expressions
Simplifying Rational Expressions with Addition/Subtraction 1
Simplifying Rational Expressions with Addition/Subtraction 2
Simplifying Rational Expressions with Addition/Subtraction 3
Simplifying Rational Expressions with Addition/Subtraction 4
Complex Fractions
Simplifying Complex Fractions: Part 1