Identify the domain of the exponential function shown in the following graph a: all real numbers

b: all positive numbers

c: 1 ≤ x ≤ 30

d: all integers

Please answer in comments

A. All real numbers

Step-by-step explanation:

To find the domain of any graph, look at which x values are included. In the case of an exponential function, both lines in either direction will continue on forever as y approaches 0 and 1. y will never touch 0 or 1, and the infinite amout of numbers in between will always have a corresponding x value. Thus, the domain of any exponential function is (-infinity, infinity) or all real numbers.

ratio is 2 : 9

the answer is three

13.5 : 3

answer: 486in^2

step-by-step explanation: