document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1190266>Question 1190266</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A helicopter takes off from the roof of a building that is 225 feet above the ground. The altitude of the helicopter increases by 200 feet each minute.<BR>\n" );
document.write( "(a) Use a formula to express the altitude of a helicopter as a function of time. (Let t be the time in minutes since takeoff and A the altitude in feet.)<BR>\n" );
document.write( "225+200t I know already got this But, I'm struggling to understand do we plug in the 90 seconds on here? I'm simply lost.<BR>\n" );
document.write( "(b) Express using functional notation the altitude of the helicopter 90 seconds after takeoff.<BR>\n" );
document.write( "Calculate that value. (Round your answer to the nearest foot.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #821868 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=821868\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A helicopter takes off from the roof of a building that is 225 feet above the ground. The altitude of the helicopter increases by 200 feet each minute.<BR>\n" );
document.write( "(a) Use a formula to express the altitude of a helicopter as a function of time. (Let t be the time in minutes since takeoff and A the altitude in feet.)<BR>\n" );
document.write( "225+200t I know already got this But, I'm struggling to understand do we plug in the 90 seconds on here? I'm simply lost.<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "A = 225 + 200t is correct.<BR>\n" );
document.write( "==============================<BR>\n" );
document.write( "(b) Express using functional notation the altitude of the helicopter 90 seconds after takeoff.<BR>\n" );
document.write( "Calculate that value. (Round your answer to the nearest foot.)<BR>\n" );
document.write( "90 seconds = 1.5 minutes<BR>\n" );
document.write( "A = 225 + 200*1.5 = 525 feet </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );