Question 87129
{{{ f(a) = ((3a)/4) - 1 }}}


so when a=-3 we get:
{{{ f(a) = ((3(-3))/4) - 1 }}}
{{{ f(a) = ((-9)/4) - 1 }}}


so now... lets write the 1 as quarters seeing as we have quarters in -9/4. One is 4 quarters --> 4/4 so we get:

{{{ f(a) = ((-9)/4) - (4/4) }}}


so this says -9 quarters -another 4 quarters... that is -13 quarters, written as {{{ (-13)/4 }}}.


Hope this helps


cheers
jon