Question

f(x) = 2x+ 12 using inputs of -20, -10, O, 10 and 20

Answer 1

To evaluate the function \( f(x) = 2x + 12 \) at the given input values of -20, -10, 0, 10, and 20, we will plug each input into the function and calculate the output.

1. For \( x = -20 \):
\[
f(-20) = 2(-20) + 12 = -40 + 12 = -28
\]

2. For \( x = -10 \):
\[
f(-10) = 2(-10) + 12 = -20 + 12 = -8
\]

3. For \( x = 0 \):
\[
f(0) = 2(0) + 12 = 0 + 12 = 12
\]

4. For \( x = 10 \):
\[
f(10) = 2(10) + 12 = 20 + 12 = 32
\]

5. For \( x = 20 \):
\[
f(20) = 2(20) + 12 = 40 + 12 = 52
\]

Here are the results:

- \( f(-20) = -28 \)
- \( f(-10) = -8 \)
- \( f(0) = 12 \)
- \( f(10) = 32 \)
- \( f(20) = 52 \)