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For the linear function ​f(x)equals=1 minus one third x1−13x​; ​(a) evaluate ​f(minus−33​) and ​f(33​); ​(b) find...

For the linear function

​f(x)equals=1 minus one third x1−13x​;

​(a) evaluate

​f(minus−33​)

and

​f(33​);

​(b) find the zero of​ f; and ​(c) graph f. How can the graph of f be used to determine the zero of​ f?

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