SOLUTION: Hi, Im doing functions, and im just STUCK! Were supposted to plug in 9, but then what? thanks! f(x)=7x+-15;f=9

SOLUTION: Hi, Im doing functions, and im just STUCK! Were supposted to plug in 9, but then what? thanks! f(x)=7x+-15;f=9

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Question 347302: Hi, Im doing functions, and im just STUCK! Were supposted to plug in 9, but then what? thanks!
f(x)=7x+-15;f=9
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
f doesn't equal 9, x does or f(x) does.
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