Saturday 2 September 2017

FUNCTIONS 1


Given that F(x) = 3x  +  11. Find F(-2)


Solution


F(x) = 3x  +  11


F(-2) = 3(-2)  +  11


F(-2) = -6  +  11


F(-2) = 5


Hence  F(-2) = 5


TRY THIS………………..



Given that F(x) = 12x  +  78. Find F(-4)


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