document.write( "Question 1141511: The quadratic function I( t )= - 0.1t2 + 1.6t represents the yearly income (or loss) from a real estate investment, where t is time in years. In what year does income reach its maximum? \n" ); document.write( "
Algebra.Com's Answer #762078 by Alan3354(69443)\"\" \"About 
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The quadratic function I( t )= - 0.1t2 + 1.6t represents the yearly income (or loss) from a real estate investment, where t is time in years. In what year does income reach its maximum?
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\n" ); document.write( "It's not clear.
\n" ); document.write( "Use ^ (Shift 6) for exponents. eg, t^2
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