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Which equation is an xy-equation for the parametric equations x equals -3t plus 4 and y equals t plus 1 where 1 t 4?
Wiki User
∙ 12y ago
You're looking to combine these two equations into one that uses only the terms x and y, right? In that case, we can take either of those equations, solve it for t, and plug it's results in place of t in the other equation:
x = -3t + 4
y = t + 1
y - 1 = t
x = -3(y - 1) + 4
x = -3y + 3 + 4
x = 7 - 3y
You can of course solve this for y as well:
-3y = x - 7
y = (7 - x) / 3
Wiki User
∙ 12y ago
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