Question 1078475
(0,5) and (4,3125) are points on  {{{f(x)=a*b^x}}}.


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{{{a*b^0=5}}}
{{{a*1=5}}}
{{{highlight(a=5)}}}


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{{{5*b^4=3125}}}
{{{b^4=3125}}}
{{{b^4=625}}}
{{{b^2=25}}}
{{{highlight(b=5)}}}


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{{{highlight(f(x)=5*5^x)}}}

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