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# need some help in core 2: exercise 11D: question 8 on page 168 Watch

the diagram shows part of a sketch of the curve with equation y=2/x^2+x. the points A and B have x-coordinates 1/2 and 2 respectively. find the area of the finite region between AB and the curve.
2. (Original post by GabJul)

the diagram shows part of a sketch of the curve with equation y=2/x^2+x. the points A and B have x-coordinates 1/2 and 2 respectively. find the area of the finite region between AB and the curve.
I'm gonna guess that this might be your problem
Spoiler:
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3. A and B I assume are points on the curve?
4. (Original post by GabJul)

the diagram shows part of a sketch of the curve with equation y=2/x^2+x. the points A and B have x-coordinates 1/2 and 2 respectively. find the area of the finite region between AB and the curve.
is that ?
5. yes, which intersect with the line .. substituting each x value in the original equation, the y values for A and B would be 17/2 and 5/2 respectively
6. no y=(2/x^2) +2
7. (Original post by GabJul)
yes, which intersect with the line .. substituting each x value in the original equation, the y values for A and B would be 17/2 and 5/2 respectively
Ok, so how would you find the equation of the line AB? Using the x and y coordinates?
8. i would think using m= (y2-y1)/(x2-x1) and then y-y1=m(x-x1) ?
9. (Original post by GabJul)
i would think using m= (y2-y1)/(x2-x1) and then y-y1=m(x-x1) ?
Good, so having done that, would you be able then to complete the question?
10. i did it!
11. (Original post by GabJul)
i did it!
Good. Well done, Repped
12. thanks, repped ?

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