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

Algebra ->  Functions -> 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      Log On


   

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) About Me  (Show Source):
You can put this solution on YOUR website!
f doesn't equal 9, x does or f(x) does.