Wednesday, 2 September 2015

Asymptote & finding compound interest





ans1. 〖y=ab〗^x…(i)
The graph passes through (0,4). Putting in (i) 4=ab^0 4=a Equation (i) will become Y=4b^x…..(ii) Also the graph passes through (1,7)From (ii) 7=4b or b=7/4 (ii) will become Y=4(7/4)^x Which is the required equation.

2.Annual Compound Interest Formula:
A = P(1+r/n)^nt (i) A=500(1+8/100)^x 
2/(ii)(i) A=500(1+8/100)^16=500(1.08)^1