Answered

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The diagram shows the cross-section of a canal. O and B are points on the surface of the water, with OB=2.5m.
At point A the canal is 3m deep. The cross-section is
modelled as a quadratic curve OAB. x and y are the
horizontal and vertical distances from O in metres.
a i Write down the coordinates of point A.

ii Hence find an equation for the curve OAB. (3 marks)

The Diagram Shows The Crosssection Of A Canal O And B Are Points On The Surface Of The Water With OB25m At Point A The Canal Is 3m Deep The Crosssection Is Mode class=

Sagot :

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