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Category: Art
Word Count: 270
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Functions

Using f(x) is a new way to express y. Before, y=x was how functions were expressed, setting x as an independent variable and y as a dependent variable. Meaning, y changes when x is changed. In the previous format, we could say when x=2, then y =2. In the newer one, we say that simply by f (4) =4. In more complex cases, when f(x) = x2 + 4
f (4)=20, says all in one statement. ‘F of x’ can be thought of as a machine, when it is supplied the value of x, it will give out the value of y. Note that wh
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