Question

Evaluate each function for x = -4

Function 1:

f(x) = 2x +7


f(−4) =
Question 2
Function 2:

f(x)=12x−3


f(−4)=
Question 3
Function 3:

f(x)=|x|+5


f(−4)=

Answer 1

Let's evaluate each function for \( x = -4 \).

**Question 1: Function 1**

\[ f(x) = 2x + 7 \]

Substituting \( x = -4 \):

\[
f(-4) = 2(-4) + 7 = -8 + 7 = -1
\]

So, \( f(-4) = -1 \).

---

**Question 2: Function 2**

\[ f(x) = 12x - 3 \]

Substituting \( x = -4 \):

\[
f(-4) = 12(-4) - 3 = -48 - 3 = -51
\]

So, \( f(-4) = -51 \).

---

**Question 3: Function 3**

\[ f(x) = |x| + 5 \]

Substituting \( x = -4 \):

\[
f(-4) = |-4| + 5 = 4 + 5 = 9
\]

So, \( f(-4) = 9 \).

---

**Summary of Results:**
- \( f(-4) \) for Function 1: -1
- \( f(-4) \) for Function 2: -51
- \( f(-4) \) for Function 3: 9