Question

The table represents the function f(x).

What is f(3)?


–9

–1

1

9

Answer 1

To find f(3) for the function f(x), substitute 3 for x in the equation y = 9 + 3x, giving us f(3) = 18.

Step-by-step explanation:

The student's question relates to finding the value of a function f(x) at a specific point, which in this case is f(3). According to the linear equation y = 9 + 3x, we can determine f(3) by substituting 3 for x in the equation. By doing so, we perform the following calculation:

• First, multiply the slope coefficient (3) by 3: 3 * 3 = 9.

• Next, add this result to the y-intercept (9): 9 + 9.

• The resulting value of f(3) is 18.

The function f(x) equals 18 when x is equal to 3.

Answer 2

9

Step-by-step explanation:

f(3) means what is the value of f(x) when x = 3

From the table

f(3) = 9