Sheppard123 Sheppard123
  • 23-09-2016
  • Mathematics
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Аноним Аноним
  • 23-09-2016
1)We evaluate the function: y=(3/4)^x

if x=-1;       ⇒y=(3/4)⁻¹=1/(3/4)¹=4/3
if x=0;        ⇒y=(3/4)°=1                        (remember; x°=1)
if x=1;        ⇒y=(3/4)¹=3/4
if x=2;        ⇒y=(3/4)²=3²/4²=9/16

we can see that;      4/3>1>3/4>9/16;
therefore : the function is decreasing.

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