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Question

Which of the following mapped diagram satisfies given function defined from X to Y.
y=2x22x+2
X:{32,2,1,1,0}
Y:{2,6,72,622}
Given that xX & yY

A
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B
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C
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Solution

The correct option is A
Given that function is defined from set X to set Y
Given rule is y=2x22x+2
X:{32,2,1,1,0}
Y:{2,6,72,622}
Given that xX & yY

Here, we need put each value of set X in given rule to find value of y.
Value of x are input here and value of y are output.

Collection of given input values is Domain and collection of output values is Range.

On putting each value of x, mapped diagram will be:

x=322×(32)22×(32)+2=72x=2=2(2)222+2=622x=12(1)22(1)+2=6x=12(1)22(1)+2=2x=02(0)22(0)+2=2

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