Question 1148671
{{{ y = a*b^x }}}
( -1, 3/5 )
( 3, 375 )
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{{{ 3/5 = a*b^(-1) }}}
{{{ a/b = 3/5 }}}
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{{{ 375 = a*b^3 }}}
{{{ a = 375/b^3 }}}
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{{{ 375/b^4 = 3/5 }}}
{{{ 3*b^4 = 5*375 }}}
{{{ b^4 = 1875 }}}
{{{ b = 6.5804 }}}
{{{ a = (3/5)*b }}}
{{{ a = .6*6.5804 }}}
{{{ a = 3.94822 }}}
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{{{ y = 3.94822*6.5804^x }}}
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Check:
{{{ .6 =  3.94822*6.5804^(-1) }}}
{{{ .6 = .6 }}}
You can check the other point