Saturday 21 May 2016

FUNCTIONS 1


If f(x) = |x - 24| evaluate f(-27)

solution

f(x) = |x - 24|

f(-27) = |-27 - 24|

f(-27) = |-51| = 51 since any number out of absolute signs is +ve.

Hence f(-27) = 51

TRY THIS..................


If f(x) = |x - 40| evaluate f(-15)

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