Given an equation for a line y=7x/3, how can i define it in mathematica using x,y and theta.(adsbygoogle = window.adsbygoogle || []).push({});

I am eventually going to have to find the intersection of this line to a circle with the equation Circle[{0,9},5] as a function of theta.

I thought maybe if i use the rule tan(θ) = y/x then id get something along the lines of y = (7/3)tanθ, but then I dont know how to define this in mathematicas language.

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# Giving the Equation of a Line in terms of X, y and theta

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