Question

Evaluate f (x) = 3x – 5 when x = -1, x = 0, and x = 3.

When x = -1, f (x) = –2 , when r = 0, f (x) = -5), and when x = 3, f (x) = 4).

Answer 1

To evaluate the function f(x) = 3x - 5 for x = -1, x = 0, and x = 3, substitute the given x values into the function: f(-1) = -8, f(0) = -5, and f(3) = 4.

Step-by-step explanation:

The student is asked to evaluate the function f (x) = 3x - 5 at three given values of x: -1, 0, and 3. To find f (x) for each of these x values, we substitute the x values into the function and calculate.

• When x = -1, f (x) is calculated as (3 × -1) - 5 = -3 - 5 = -8, not -2 as the student suggested.
• When x = 0, f (x) is (3 × 0) - 5 = 0 - 5 = -5.
• When x = 3, f (x) is (3 × 3) - 5 = 9 - 5 = 4.

Therefore, the correctly evaluated values are f (-1) = -8, f (0) = -5, and f (3) = 4.

Answer 2

f(x) = 3x − 5 when x=−1, x=0, x=3

Answer:

-8, -2, 4

Step-by-step explanation:

1. Insert -1, 0, and 3 into x

2. Solve

Replace x with -1: f(-1) = 3(-1) − 5

Multiply 3(-1): f(-1) = -3 − 5

Subtract by 5: f(-1) = -8

The answer is -8

Now do this for the rest of the problems:

f(0) = 3(0) − 5 when x=−1, x=0, and x=3

-2 is the 2nd answer

f(3) = 3(3) − 5 when x=−1, x=0, and x=3

4 is the 3rd answer

This is my first answer, so I hope I explained it well!