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What is the answer for question 6) ? http://postimg.org/image/gh7r0vojp/

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jayson94 | Salutatorian

Posted August 3, 2013 at 7:37 PM via web

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What is the answer for question 6) ?

http://postimg.org/image/gh7r0vojp/

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aruv | High School Teacher | Valedictorian

Posted August 4, 2013 at 3:32 AM (Answer #1)

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The graph represents a quadratic fuction. From graph we observe that

(0,0) , (-1,1) and (1,1) lies on the graph.

let quadratic function be

y=`ax^2+bx+c`

graph passe through (0,0) therefore c=0

also

1=a+b

1=a-b

Thus a=1 and b=0

So curve is

`y=x^2`

 

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