ask your self frist how many months is in 6 years that would be 72 months .....so now you have 8.5% interest on the amount of $4280 for 72 months.....the interest gained in 72 months would be $3047.37......$4280+$3047= $8727. I think but not 100% sure
in the linear equation the greatest power of the variables is 1 for example:2X+4 this is a linearequationasthegreatestpowerofthevariableX is 1also by drawing it in a graph you will obtain a straight line
while in the quadratic equation the greatestpoweris2for instance:X^2+4X-3 this is a QuadraticequationbecausethegreatestpowerofthevariableX is 2also by drawing it on a graph you will obtain a parabola which is a curve "an upward curve or downward curve"
