4 years ago

What is the value of j(-5)

1 answer:

6 0

$f(x)=\left\{\begin{array}{ccc}2-x&if&x\leq-5\\x+11&if&x > -5\end{array}\right\\\\-5\leq-5\ \text{therefore for}\ x=-5,\ f(x)=2-x\\\\f(-5)=2-(-5)=2+5=7$

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$\bf \qquad \qquad \textit{direct proportional variation}\\\\
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