Question

Graph algebra problem! Can anybody help me out as graphs are definitely not my strong suit.​

Answer 1

f(2) = 5

Explanation:

The 2 in f(2) means you're looking for the value of the function when x=2.

Find the vertical line that is the 2nd one to the right of the y-axis. Follow it up until you reach the function line (at the top edge of the graph). The y-value there is the value of f(2). That is 5 squares above the x-axis, so ...

f(2) = 5

Answer 2

f(2) = 5

Explanation:

Definitions:

Input values = x-coordinates.

• The input values are also known as the domain, which is the set of all real numbers. With the domain of a function, you could substitute any real number into a given function for x and produce a valid output.

Output values = y-coordinates

• The range is the set of all real numbers that depend on the input values plugged into the function. Thus, the range represents the output (y-values) that corresponds to the input values used into the function.

Function Notation:

• In the function notation f(x), f is the function name, and x is your input variable.
• Output values are also called functional values. You could use any letter to represent a function name, such as g(x), w(x), etc.,.

Explanations:

This particular question asks for you to identify the corresponding output (y-value) of the given input value, x = 2. If you look at the graph, the x-coordinate, x = 2, corresponds to the y-coordinate of 5.

Therefore, f(2) = 5.

Attached is an edited screenshot of the graph that you posted, where it shows where f(2) = 5 is located on the graph.