Algebra Ch 44: Functions (3 of 8) Evaluate Functions: Examples

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We will evaluate the follow functions:
f(x)=x^2-3x+2 for x=2 find f(x=2)=?
f(x)={(2.6), (3,8), (4,10), (5,2)} find f(x=2)=?

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[OlivierGeorg]

There is no need for subscribing y as y1 and y2, as you use the y axis for representing the value of f(x). Lets say we ask ourself "for which value of x do f1(x) and f2(x) have the same value?". That is the same as saying "for which value do we pin them at the same height y?". Y is just the axis on which we represent the result of calculating f, f1, f2 for some values of x

[krishdesai]

I mean this in no disrespectful way but he's like the more advanced professor proton of youtube