Question 329970
{{{y=Ca^(x)}}}
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{{{y(0)=Ca^(0)}}}
{{{C=-2}}}
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{{{y=-2a^(x)}}}
{{{-2a^2=-50}}}
{{{a=5}}}
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{{{y=-2(5)^x}}}
{{{y(-2)=-2(5^(-2))=-2/25}}}