ShmoopTube

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using function notation -a la shmoop well thank goodness we never get

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distracted while doing our math homework. but seriously do you see that Saints [girl frowns sitting at a desk]

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game last weekend? what a blowout. what we're talking about again ?oh right

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getting distracted. well any time we plug an x value into a function to see what

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the corresponding Y value is we can get lost in our tracks and forget what we're [train goes by]

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doing. for example say we want to find the Y value the output, when X the input,

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equals 3 for the equation y equals 4x minus 3. well if we forget what we

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initially plugged in we'll have to go back to the question to figure it out. if

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we use function notation and write f of 3 equals 4x minus 3 then plug into 3 we

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end up with F of 3 equals 9. and remember that when X is 3 y or the output is 9. it [equation on screen]

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might seem a bit funky the function notation becomes much easier to use over

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time as long as we remember that X is the input and Y is the output. oh look a

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squirrel. [squirrel runs in front of chalkboard]

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