What is the answer for question 6) ?

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

### 1 Answer | Add Yours

The graph represent a quadratic function.

let it be

`f(x)=ax^2+bx+c`

graph posses through (0,0),(-1,1) and (1,1)

0=a x0+ b x 0 +c

c=0

`1=a (-1)^2+b(-1)`

`1=a-b`

`1=a(1)^2+b(1)`

`1=a+b`

`Thus `

`a=1 and b=0`

So quadratic function is

`f(x)=x^2`

where f(x)=y.

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