jarmondofoo jarmondofoo
  • 13-05-2022
  • Mathematics
contestada

What is the range of f(x) = 3x + 9?

{y | y < 9}
{y | y > 9}
{y | y > 3}
{y | y < 3}

Respuesta :

mariapll101 mariapll101
  • 13-05-2022
From the given options we can think that x is
in the exponent of 3.
So, the given function is actually f(x) = 3^x +9
Now, we need to find the range of given
function.
We can see that first term is and exponential
term 3^x and second term is 9
We know that 3^x will always be greater than
O.
Therefore, 3^x +9 would always be greater
than 9.
Therefore, range would be y>9.
So, the correct option is B) (y | y > 9}.
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