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Curated Video
Graphing Rational Functions (Same Degree 2)
In this video, we investigate how to graph rational functions where the numerator has the same degree as the denominator.
Curated Video
Graphing Rational Functions with Differing Degree (and with holes)
In this video, we graph rational functions where the numerator and denominator have differing degree. We also do an example with a hole.
Curated Video
Basic Transformations (a, h, and k)
In this video, we explore how changing a, h, and k affect the graph of a parabola (or any function, really). The "a" value controls vertical stretch, vertical compression, and reflections. The "h" controls the horizontal shift and the...
Curated Video
Sine & Cosine Graph Word Problems (Given the Equation)
This is the first of two videos about applications of Periodic Functions. In this video, we examine how to write the equation of a sine or cosine (sometimes called periodic or sinusoidal) graph from a word problem.
Curated Video
Sine & Cosine Graphs Word Problems (Writing the Equation)
In this video, we investigate how to write the equation of a sine or cosine graph when given the an application situation.
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Basic Transformations (horizontal stretch and compression)
The "b" value controls horizontal stretch and compression. In this video, we examine how changing "b" affects the graph of a function. What does b do to a function? Why is it "backwards?" We explore all of these questions in this video.
Curated Video
Open Top Box Polynomial Functions
How do you maximize the volume of a box with a polynomial function? In this video, we cut the corners off a flat sheet of metal to fold up the box and create an open-top box. We model the volume of said box with a polynomial function...
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Rational Functions in the Real World
What are some applications of rational functions? In this video we see a real-life example of rational functions and horizontal asymptotes.
Curated Video
Eliminate the Parameter (Parametric Equations)
How do you eliminate the parameter in parametric equations? How do you eliminate the parameter with sin and cos? This video works through three examples of rewriting parametric equations in standard rectangular form.
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Domain and Range Basics
Watch this video for basic definitions and applications of that Algebra ideas of domain and range.
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Identifying and Using Sequences
Understanding Explicit and Recursive Rules for Sequences in Go-Kart Pricing Analysis
Curated Video
Exponential Functions with Percent Increase or Decrease
Find all six trig ratios given a point on the terminal side of theta. In this video we work this common type of problem. We use the Pythagorean Theorem to find "r" (hypotenuse), and then use the given "x" (adjacent) and "y" (opposite) to...
Curated Video
Relating Linear Factors to Quadratics
The video explains how to solve quadratic equations when they're in factored form by understanding the link between their linear factors and the quadratic itself.
Curated Video
Symmetry of Parabolas
In this video, we examine a problem where we have to use the fact that parabolas are symmetrical in order to solve it.
Curated Video
Domain and Range Word Problems
See how the definitions of domain and range apply to real-world situations.
Curated Video
Explicit Rule for Arithmetic Sequences - 2
In this video, we look at how to write an explicit rule for an arithmetic sequence. An arithmetic sequence is a sequence that increases by a common difference (meaning you add or subtract to get to the next term).
Curated Video
Semester Exam Review
A semester exam review covering key math topics such as simplifying expressions, solving linear equations (including those with fractions), and describing transformations of functions. The lesson emphasizes common mistakes, the use of...
Curated Video
Algebra 1 EOC Review - Write Equations of Lines A2B & A2C
Algebra 1 STAAR/EOC released test questions. These are practice problems meant to help you review and practice as you prepare for your STAAR test / EOC test for Algebra 1 (Texas). Readiness standard: A2C - write linear equations in two...
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Python Lesson25: for-loop to compute Sum
Learn how to use a for-loop to compute the Sum of all the numbers in a List.