If f(x)=2|x|+3 x, then findf(-5) - Vidyadip

Question

If $f(x)=2|x|+3 x$, then find$f(-5)$

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Answer

$ \text { (ii) } f(-5)=2|-5|+3(-5)$
$=2(5)-15 \ldots .[\because|x|=-x, x<0]$
$=10-15$
$=-5$

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