parametric equation help

[lakitu]

hi apologise if this is in the wrong forum

my lecturer has told me that i need to be able to express parametric equations as a cartesian equation in my exam later this month. my mind boggles !

here is an example i have found.

Express the parametric equations x = 2 t - 2 and y = 3 t - 2 as a Cartesian equation in just x and y.

any help would be great!

kind regards lakitu

[Guv]

Fiddle with the two equations until you have t = F(x) & t= G(y).

Then F(x) = G(y), eliminating t. Fiddle with this to simplify it. They usually want y = H(x).

I could do it all for you, but you should be able to do the necessary algebraic manipulaitons.

[lakitu]

thank-you i think i understand all of that i will give it a go