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1. how do you find the coordinate of the stationary points of y=2x+3 / 8/x ?
2. (Original post by unicorngirl15)
how do you find the coordinate of the stationary points of y=2x+3 / 8/x ?
What have you tried to do so far? What do you normally do to find a turning point/stationary point? xx
3. When a point is stationary, its gradient is going to equal zero.
Therefore to find the x coordinate, you need to find the derivative (dy/dx) of the equation, set it equal to zero, then solve.
After that, sub the x back into the equation to get the y.

If you have any other questions just ask
4. (Original post by AnnaBanana2000)
What have you tried to do so far? What do you normally do to find a turning point/stationary point? xx
i diffrentiated 8/x to get -8x to the power of -2. But i am not sure what to do next ?
5. (Original post by unicorngirl15)
i diffrentiated 8/x to get -8x to the power of -2. But i am not sure what to do next ?
Ok, well stationary points are when the gradient is equal to 0. You’ve just worked out the gradient function, so how do you think we can get x? xx
6. (Original post by AnnaBanana2000)
Ok, well stationary points are when the gradient is equal to 0. You’ve just worked out the gradient function, so how do you think we can get x? xx
Is it y=2* (-8x)to the power of -2 ?

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