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TAGS: Moderator  Joined: 18 Apr 2015
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Which points lie on the graph of [#permalink]
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Expert's post 00:00

Question Stats: 81% (00:53) correct 18% (00:24) wrong based on 11 sessions

Which points lie on the graph of $$y=\frac{x^2}{x+1}$$?

❑ $$(-3,-5)$$

❑ $$(-2,-4)$$

❑ $$(-1,-3)$$

❑ $$(1, \frac{1}{2})$$

❑ $$(3, 2*\frac{1}{2})$$
[Reveal] Spoiler: OA

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Director Joined: 20 Apr 2016
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WE: Engineering (Energy and Utilities)
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Re: Which points lie on the graph of [#permalink]
Carcass wrote:

Which points lie on the graph of $$y=\frac{x^2}{x+1}$$?

❑ $$(-3,-5)$$

❑ $$(-2,-4)$$

❑ $$(-1,-3)$$

❑ $$(1, \frac{1}{2})$$

❑ $$(3, 2*\frac{1}{2})$$

[Reveal] Spoiler: OA
B,D

Here we need to put the values of x ,y from the given option to the given equ. $$y=\frac{x^2}{x+1}$$

only option B and D satisfy the equa.

Considering option B

x= -2 and y =-4

we have $$-4$$ = $$\frac{(-2)^2}{(-2+1)}$$=$$-4$$

and in option D
x= 1 , y =1/2

therefore $$\frac{1}{2}$$= $$\frac{(1)^2}{(1+1)}$$=$$\frac{1}{2}$$
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