Good afternoon Everyone,

I am at this again...

I have two questions with respect to parametric equations:

1) The problem was to find a parametric equation of a straight line sement from $\displaystyle P=(1,2)$ to $\displaystyle Q=(4,7)$.

I get the following:

$\displaystyle m=\frac{5}{3}$

$\displaystyle C(t) = (a+t , b+mt)$

$\displaystyle C(t) = (1+t , 2+\frac{5}{3}t)$

Is this all there is to this question?

2) The second question I have is deals with eliminating the parameter from:

$\displaystyle

\left\{\begin{array}{cc}x=cos\theta\\y=\cos\theta+ \sin^2\theta\end{array}\right

$

I am at a complete loss here, I don't follow what my book is trying to tell me at all. There was an entire paragraph on the subject of eliminating the parameter. The notes on this problem state that the equation relating x and y should not involve trig functions.