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#1 2007-02-10 01:57:01

jxharmon
Member
Registered: 2007-01-08
Posts: 104

function problem please check

f(x)=5xsqured -3x+1findf(-2)
f(-2)=5(-2)squared - 3(-2) +1
  5(4)-3(-2)+1=20-(-6)+1=14+1=15 correct?

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#2 2007-02-10 01:59:22

luca-deltodesco
Member
Registered: 2006-05-05
Posts: 1,470

Re: function problem please check

your mistake was that you did -(-6) = -6, rather than -(-6) = +6


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#3 2007-02-10 02:23:57

jxharmon
Member
Registered: 2007-01-08
Posts: 104

Re: function problem please check

thanks

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