B. For y to be defined as a function of x, it must meet several criteria, including:  the numerical expression must be an equality or inequality  the expression must include both
http://answers.yahoo.com/question/index?qid=200812...

Umm I'm not 100% sure but I think it's 54y.
http://wiki.answers.com/Q/What_does_9x_6y_equals

When defining a function in terms
http://www.chacha.com/question/whenyouaredefini...

To determine the antiderivative of a function, you'll have to integrate that function. We'll rewrite the given function; y = 1/(9x+7) We'll integrate both sides: `int` dy = `int`
http://www.enotes.com/homeworkhelp/howdetermine...
