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Let f be a function defined by f:xto5x^(...

Let f be a function defined by `f:xto5x^(2)+2,x in R`
(i) Express f as a set of ordered pairs using set builder notation.
(ii) Is f a one-one function
(iii) Find the image of 3 under f
(iv) Find x such that `f(x)=2`

Text Solution

Verified by Experts

The correct Answer is:
`f={(x,y);y=5x^(2)+2,x inR}` (ii) Not one one function (iii) 47 (iv) 0
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