Question

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

Answer 1

We are given function f(x) = 3x+9.

We need to find the range of the given function.

We are given options

A) {y | y < 9}

B) {y | y > 9}

C) {y | y > 3}

D) {y | y < 3}

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 0.

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}.

Answer 2

The answer is b broskie