Algebra 16 - Real-Valued Functions of a Real Variable

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Although the domain and codomain of functions can consist of any type of objects, the most common functions encountered in Algebra are real-valued functions of a real variable, whose domain and codomain are the set of real numbers, R.
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The consistent script, perfect explanation. Many many thanks.

arifkizilay
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The set, f, defined at @3:43 may also be written as f = { (x, y) ∈ ℝxℝ : x ∈ ℝ ∧ y ∈ ℝ ∧ y=2x } or f = { (x, y) ∈ ℝxℝ : x ∈ ℝ ∧ y ∈ ℝ ∧ (y-2x)=0 }.

codework-vber
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much more clear explanation than khan academy.would request you to upload more videos.

koustavroychowdhury
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Nice videos =) I wasted a semester trying to understand these lessons!

hkheyreddine
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Fantastic series can't say enough good about it!

rosey_luv
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can u do a lesson on perfect squares? eg. (x+y)2 powering
or (x+y)2 powered - (x2+y2)

stealthxasx
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What is the point of having dependant and independent if we can easily restate the function to x=1/2y?

MegaMementoMori
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How do I solve this question...
here is the question:
Consider the following claim: if the point
 (2+d, y) is on the graph of F(x)=x(x-4), then the point (2-d, y) is also on the graph.
then there is a bullet point that says
What is the relationship between the x=2 and the graph of F(x)?
I know this may seem easy to yall or you but to me someone who cant understand math for her life his is seriously intense. im not looking for the answer just how im supposed to work this out and solve it..
Thank you
-Q

queenbaptiste
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Yes thank god it is a cartoon make it funny

jackfrost