Question

I need help with the function plz!!

Answer 1

Y=4

the common ratio between the number sequence is 4

i solved it by taking 512 and dividing it by the previous number 128 and i did the same to the rest of the numbers and found the common ratio of 4

Answer 2

Answer:

$2048 \times( \frac{1}{4} ) {}^{x}$

Step-by-step explanation:

Objective:Functions

The table of values range and domain isn't proportional so the answer is exponential.

A exponential function is represented by

$ab {}^{x}$

The y values are decreasing by a common ratio of 4 so our b(our base) cant be negative so it will be

$\frac{1}{4}$

b=1/4 so plug that in our expression.

$a( \frac{1}{4} ) {}^{x}$

Let plug in 1,512.

$a( \frac{1}{4} ) {}^{1} = 512$

$\frac{1}{4} a = 512$

$a = 2048$

So our function is

$2048 \times ( \frac{1}{4} ) {}^{x}$