document.write( "Question 821303: my problem is: \"The amount accumulated in a bank account over a time period 't' and based on an initial deposit of $200 is found using the formulas A(t)=200(1.025) and it has a squared 't' at the end of the closing parenthesis., t is less than or equal to 0. Time, t, is represented on the horizontal axis. the accumulated amount, A(t), is represented on the vertical axis.\"
\n" ); document.write( "what i want to know is:
\n" ); document.write( "a.How do you find the x-intercept?
\n" ); document.write( "b.How do you find the doain?
\n" ); document.write( "c.How to find the range?
\n" ); document.write( "d.And how to find out if the function has a max or min. value?
\n" ); document.write( "

Algebra.Com's Answer #494005 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
\"The amount accumulated in a bank account over a time period 't' and based on an initial deposit of $200 is found using the formulas A(t)=200(1.025) and it has a squared 't' at the end of the closing parenthesis., t is less than or equal to 0. Time, t, is represented on the horizontal axis. the accumulated amount, A(t), is represented on the vertical axis.\"
\n" ); document.write( "A(t)=200(1.025)^t
\n" ); document.write( "--------------------------
\n" ); document.write( "what i want to know is:
\n" ); document.write( "a.How do you find the x-intercept?
\n" ); document.write( "Let A(t) be zero; then solve for \"t\":
\n" ); document.write( "200(1.025)^t = 0
\n" ); document.write( "(1.025)^t = 0
\n" ); document.write( "Note: there is no value of \"t\" that will make 1.025^t equal zero.
\n" ); document.write( "--------------------------------------
\n" ); document.write( "b.How do you find the domain?
\n" ); document.write( "Since A(t) is the amount in the bank and \"t\" is time.
\n" ); document.write( "the domain is 0<= t <= oo
\n" ); document.write( "--------------------------------
\n" ); document.write( "c.How to find the range?
\n" ); document.write( "Since 1.025 is greater than 1 and t >= 0, A(t) >= 200
\n" ); document.write( "------------------------------------
\n" ); document.write( "d.And how to find out if the function has a max or min. value?
\n" ); document.write( "Since 1.025 is greater than 1 there is no max.
\n" ); document.write( "Since A(t) is asymptotic to zero there is no minimum.
\n" ); document.write( "However, since t >= 0, A(t) is >=200.
\n" ); document.write( "===========================================
\n" ); document.write( "\"graph%28400%2C400%2C-10%2C50%2C-10%2C1000%2C200%281.025%29%5Ex%29\"
\n" ); document.write( "===========================================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "=============
\n" ); document.write( "
\n" );