Question 1158808


{{{y = a*b^x}}}......use the point ({{{0}}}, {{{2}}}) 

{{{2 = a*b^0}}}

{{{2 = a*1}}}

{{{a=2}}}


{{{y = 2*b^x}}}.....use the point  ({{{3}}}, {{{250}}})

{{{250 = 2*b^3}}}

{{{b^3=250/2}}}

{{{b^3=125}}}........{{{125=5^3}}}

{{{b^3=5^3}}}

{{{b=5}}}


so, {{{a=2}}} and {{{b=5}}}, your equation is:

{{{y = 2*5^x}}}