What are the domain and range of f(x) = 2(3^x)? domain: (-∞,∞); range: (0,∞) domain: (-∞,∞); range: (2, ∞) domain: (0,∞); range-∞,∞) domain: (2,∞); range: (-∞,∞)

A) domain: (-∞,∞); range: (0,∞)

Step-by-step explanation:

The given function f(x) =

Here x represents the domain and f(x) represents the range.

The given function is an exponential function.

The general form of an exponential function y = .

In the given equation, a =3 which is greater than 1. Therefore, when x increases the function f(x) tends to infinity.

When x decreases the function f(x) tends to zero.

That is, when x --> ∞, the function f(x) --> ∞

When x --> -∞, the function f(x) --> 0

Therefore, the function has the following domain and range.

Domain = (-∞, ∞)

Range = (0, ∞)

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step-by-step explanation:

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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