Hey Keith. Try finding an expression for Y in terms of t, so you can substitute that into X = t^2.
I am stuck and need a push. This problem looks simple, I have done quite a few of these but this one is a little different, it's giving me trouble. I am suppose to eliminate the parameter t to find a cartesian equation for:
x = t^2
y = 7 +1t
x = Ay^2 + By + C
I was trying to solve for t as a function of Y and I thought I had it but no cigar. I am sure it is just that I have been sitting down for an hour and I need to walk away and come back to this because it seems to be easy but I just CAN'T!!!! Please HELP!
so what you need to do is first use equation (2)
-> therefore t is
then you substitute this into equation (1)
then equate this value of x to equation (3). They are bothe quadratic so compare the coefficients.
compare the coefficients
a = 1
b = -14
c = 49