55.1k views
5 votes
Describe the domain, range, and vertex of the function f(x) = 3|x - 4| + 2.

User Mynetx
by
7.7k points

1 Answer

5 votes

Final answer:

The domain of the function f(x) = 3|x - 4| + 2 is all real numbers, the range is y ≥ 2, and the vertex of the function is at the point (4, 2).

Step-by-step explanation:

To answer the question about the function f(x) = 3|x - 4| + 2, let's discuss the domain, range, and vertex of the function.

Domain: The domain of a function is the set of all possible input values (x-values) that the function can accept. For the given function, the domain is all real numbers since absolute value functions are defined for all real numbers. Thus, the domain is x ∈ (-∞, ∞).

Range: The range of a function is the set of all possible output values (y-values). Since the absolute value function is always non-negative and is being multiplied by 3 and then increased by 2, the smallest value it can take is 2 (when x=4). Therefore, the range of this function is y ∈ [2, ∞).

Vertex: The vertex of an absolute value function is the point at which the graph changes direction. It corresponds to the minimum (or maximum) value of the function. For f(x) = 3|x - 4| + 2, the vertex is located at (4, 2) because that's where the input into the absolute value expression is zero, which minimizes the function's output.

User Cruizer
by
8.1k points

No related questions found