Math

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Write an equation in slope-intercept 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 -

    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 -

    never mind, i was right

  • Math -

    I would proceed to eliminate t from the two equations by subtracting 2 times equation 1 from the second.
    This gives me
    y=2x-25/12
    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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