Coefficient of x in `- 9xy^2z` is

Options

A. 9yz
B. `-9yz`
C. `9y^2z`
D. `-9y^2z`

Answer

To find the coefficient of \( x \) in the expression \( -9xy^2z \), we can follow these steps:

### Step 1: Identify the expression
The given expression is \( -9xy^2z \).

### Step 2: Understand what a coefficient is
A coefficient is a numerical factor that multiplies a variable in an algebraic expression. In this case, we are looking for the coefficient of \( x \).

### Step 3: Isolate the coefficient of \( x \)
In the expression \( -9xy^2z \), the term that includes \( x \) is \( -9xy^2z \). Here, \( -9 \) is the numerical factor that multiplies \( x \).

### Step 4: State the coefficient
Thus, the coefficient of \( x \) in the expression \( -9xy^2z \) is \( -9 \).

### Final Answer
The coefficient of \( x \) in \( -9xy^2z \) is \( -9 \).

---