Get ready for Algebra 2
Get ready for Algebra 2! Learn the skills that will set you up for success in polynomial operations and complex numbers; equations; transformations of functions and modeling with functions; exponential and logarithmic relationships; trigonometry; and rational functions.
6 units157 videos14 hours
Learn it live with a class on Puzzicle · Teachers: use it with your class
Unit 1: Get ready for polynomial operations and complex numbers
Combining like terms
The distributive property & equivalent expressions
Multiplying & dividing powers
Multiplying binomials
Special products of binomials
Factoring quadratics intro
Factoring quadratics by grouping
Factoring quadratics with difference of squares
Factoring quadratics with perfect squares
Perfect square factorization intro ✓ Check-ins5:19
Factoring perfect squares ✓ Check-ins4:54
Identifying perfect square form ✓ Check-ins4:37
Factoring perfect squares: negative common factor ✓ Check-ins3:52
Factoring perfect squares: missing values ✓ Check-ins2:39
Factoring perfect squares: shared factors ✓ Check-ins4:26
Unit 2: Get ready for equations
Solving equations with variables on both sides
Why we do the same thing to both sides: Variable on both sides ✓ Check-ins7:36
Intro to equations with variables on both sides ✓ Check-ins8:53
Equations with variables on both sides: 20-7x=6x-6 ✓ Check-ins4:06
Equation with variables on both sides: fractions ✓ Check-ins4:50
Equation with the variable in the denominator ✓ Check-ins3:24
Linear equations with parentheses
Introduction to systems of equations
Solving systems of equations with substitution
Equivalent systems of equations and the elimination method
Why can we subtract one equation from the other in a system of equations? ✓ Check-ins8:13
Elimination strategies ✓ Check-ins7:16
Systems of equations with elimination: x-4y=-18 & -x+3y=11 ✓ Check-ins5:59
Systems of equations with elimination (and manipulation) ✓ Check-ins12:01
Worked example: equivalent systems of equations ✓ Check-ins5:31
Worked example: non-equivalent systems of equations ✓ Check-ins4:30
Solving quadratic equations by taking the square root
Solving quadratics by factoring
The quadratic formula
Unit 3: Get ready for transformations of functions and modeling with functions
Evaluating functions
Introduction to the domain and range of a function
Determining the domain of a function
Determining whether values are in domain of function ✓ Check-ins4:57
Examples finding the domain of functions ✓ Check-ins4:25
Worked example: determining domain word problem (real numbers) ✓ Check-ins2:19
Worked example: determining domain word problem (positive integers) ✓ Check-ins2:34
Worked example: determining domain word problem (all integers) ✓ Check-ins5:34
Recognizing functions
Maximum and minimum points
Intervals where a function is positive, negative, increasing, or decreasing
Graphs of absolute value functions
Graphing quadratics in factored form
Graphing quadratics in vertex form
Graphing quadratics in standard form
Features and forms of quadratic functions
Unit 4: Get ready for exponential and logarithmic relationships
Exponent properties (integer exponents)
Radicals
Exponential vs. linear growth
Exponential expressions
Graphs of exponential growth
Exponential vs. linear growth over time
Exponential growth & decay
Exponential functions from tables & graphs
Writing exponential functions ✓ Check-ins1:40
Writing exponential functions from tables ✓ Check-ins5:17
Writing exponential functions from graphs ✓ Check-ins7:25
Analyzing tables of exponential functions ✓ Check-ins7:20
Analyzing graphs of exponential functions ✓ Check-ins4:06
Analyzing graphs of exponential functions: negative initial value ✓ Check-ins6:07
Modeling with basic exponential functions word problem ✓ Check-ins5:37
Unit 5: Get ready for trigonometry
Pythagorean theorem
Pythagorean theorem and distance between points
Ratios in right triangles
Introduction to the trigonometric ratios
Solving for sides and angles in right triangles using the trigonometric ratios
Unit 6: Get ready for rational functions
Adding and subtracting fractions with unlike denominators
Adding fractions with unlike denominators introduction ✓ Check-ins4:02
Adding fractions with unlike denominators ✓ Check-ins7:24
Subtracting fractions with unlike denominators introduction ✓ Check-ins3:36
Subtracting fractions with unlike denominators ✓ Check-ins5:01
Adding and subtracting 3 fractions ✓ Check-ins5:23
Solving for the missing fraction ✓ Check-ins5:40
Multiplying and dividing fractions
Multiplying binomials
Learn this with a class
With a class on Puzzicle this course runs as a timetable of live study parties: your batch watches together and answers the check-ins, sometimes with a teacher leading.
Course content © Khan Academy, used under CC BY-NC-SA. See this course on Khan Academy.