The equation of the
the tangent at vertex to the
parabola 4y^2+ 6x = 8y + 7 is
(1)x= 11/6
(2) y = 2
(3) x=-11/6
(4)y= -2
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Answer:
x=11/6
Step-by-step explanation:
First find the vertex if the parabola 4y²+6x=8y+7 ...... (1)
Rearranging the above equation we get, 4y²-8y+4=-6x+11
⇒
⇒
Hence, the vertex of the parabola is ().
Now, we have to find the slope of the tangent to the parabola at the vertex.
Differentiating equation (1), with respect yo x, we get
⇒
⇒∞
So, the tangent is parallel to y axis and passing through the vertex.
Therefore, the equation of the tangent will be, x= 11/6. (Answer)
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