The relation `y = 2x^2`, for `x > 0`, is represented by
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`B`
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`y = 2x^2 \ \ \ … \ text{(i)}`
`text(Consider)\ A`
`text(Sub)\ x^2 = 3\ text{into (i)}`
| `y` | `= 2(3)` |
| `= 2 xx 3` | |
| `= 6` |
`text(Does not fit point given in)\ A.`
`:.\ text(Eliminate)\ A`
`text(Consider)\ B`
`text(Sub)\ x^2 = 9\ text{into (i)}`
| `y` | `= 2(9)` |
| `= 18` |
`text(Fits point given in)\ B.`
`text(Similarly)\ C, D, E\ text(can be ruled out.)`
`=> B`