Question

If the domain of f (x)= -2x +1 is {-1,0,1,2}, what is the range?

A: {3,1,-1,-3}
B: {3,1}
C: {3,1,-1}
D: {-3,-1}

Answer 1

The resulting outputs are {3, 1, -1, -3}. Therefore, the range of the function f(x) = -2x + 1 is:A: {3, 1, -1, -3}

The answer is option ⇒a

Step-by-step explanation:

To determine the range of the function f(x) = -2x + 1, we need to evaluate the function for each value in the given domain {-1, 0, 1, 2}.

1. For x = -1:

f(-1) = -2(-1) + 1 = 3

2. For x = 0:

f(0) = -2(0) + 1 = 1

3. For x = 1:

f(1) = -2(1) + 1 = -1

4. For x = 2:

f(2) = -2(2) + 1 = -3

The resulting outputs are {3, 1, -1, -3}. Therefore, the range of the function f(x) = -2x + 1 is:

A: {3, 1, -1, -3}

The answer is option ⇒a