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4 January, 11:15

For the function ƒ (x) = 3x2 - 7, find the value of ƒ (x) when x = 3.

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  1. 4 January, 15:12
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    To find the value of a function at any given value, x can be substituted for the value given. In this case 3x2 - 7 becomes 3 (3) (2) - 7. 3 (3) (2) - 7 = 18 - 7 = 11
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