Posted by Sophie on Wednesday, June 3, 2009 at 4:37pm.
Write an equation in slopeintercept form of the line whose parametric equations are:
x = (1/2)t +2/3 and y = t  3/4.
a) y = 2x  7/12
b) y = 2x + 7/12
c) y = 2x  7/12
d) y = 2x  25/12
I think it is D.....?

Math  Reiny, Wednesday, June 3, 2009 at 5:00pm
my equation is
y = 2x  25/12
I tested it using t=0, so a point on it would be (2/3, 3/4)
none of the answers you give have that point on it, but my equation does.
check your typing.

Math  Sophie, Wednesday, June 3, 2009 at 5:01pm
never mind, i was right

Math  MathMate, Wednesday, June 3, 2009 at 5:03pm
I would proceed to eliminate t from the two equations by subtracting 2 times equation 1 from the second.
This gives me
y=2x25/12
which does not correspond to any of the answers. So could you please check if the two equations have been entered correctly, or if the answers have been transcribed correctly.
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