FUNCTIONS 6

If f(x) = |x - 10| evaluate f(-27)

solution

f(x) = |x - 10|

f(-27) = |-27 - 10|

f(-27) = |-37| = 37 since any number out of absolute signs is +ve.

Hence f(-27) = 37

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

If f(x) = |x - 20| evaluate f(-15)