Question:
A function $t$ is defined by $t(x)=2 x-5$. Write down the values of
(i) $f(0)$,
(ii) $f(7)$,
(iii) $f(-3)$
Solution:
The given function is $f(x)=2 x-5$.
Therefore,
(i) $f(0)=2 \times 0-5=0-5=-5$
(ii) $f(7)=2 \times 7-5=14-5=9$
(iii) $f(-3)=2 \times(-3)-5=-6-5=-11$
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