
Graphs of square-root functions (video) | Khan Academy
Sal graphs y=√x. Then, he shows a few examples of how we can shift and stretch the graphs of y=√x and y=x^2, and how the equations of those graphs look. Created by Sal Khan and CK-12 Foundation.
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Radical functions & their graphs (article) | Khan Academy
In this article, we will practice a couple of problems where we should match the appropriate graph to a given radical function. I want to watch a video before we start!
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Practice graphing square and cube root functions with interactive exercises to enhance your understanding of radical graphs on Khan Academy.
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Circle equation review | Analytic geometry (article) | Khan Academy
Circle equation is the Pythagorean theorem but instead of a ^2 + b^2 =c^2 it's (x-k)^2+ (y-b)^2=radius^2. To find the radius all you need to do is square root the number after equal sign to get the radius. To …
Developing kinematic equations from data - Khan Academy
Let's see what the graph looks like and we get a graph that looks like this if we plot them all. You can see it's not a straight line and again, it looks like a parabola.
Graphing square and cube root functions - Khan Academy
We can graph various square root and cube root functions by thinking of them as transformations of the parent graphs y=√x and y=∛x.
Function notation — Basic example (video) | Khan Academy
It's because of how f (x) works. x on an 2d graph is the input while f (x) is the output. f (x) and g (x) itself is just creating a new function. So 2 new lines on a graph. f of g of x means you're creating an g …
Formulating quadratic and square-root equations using graphs - Part 2
Sal demonstrates how to use vertex form to write the equation of a quadratic function given a table of values, and how to use this equation to write the equation of the inverse square root function.