Thursday, 6 March 2014

FUNCTIONS C1

If F(x) = 21x - 10. Find F(-2)

Solution

F(x) = 21x  - 10

F(-3) = 21(-2) - 10

F(-3) = (-42) - 10

F(-3) = -52

Hence  F(-3) = -52


TRY THIS……………………………


If F(x) = 13x + 19. Find F(-3) 


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