k236
Answered

Learn how to evaluate a quadratic function for given input [tex]\( v \)[/tex].

[tex]\[
\begin{array}{l}
f(x) = 3x^2 - 4x + 2 \\
\text{Find } f(-4), f(0), f(1)
\end{array}
\][/tex]



Answer :

Alright, let's evaluate the quadratic function [tex]\( f(x) = 3x^2 - 4x + 2 \)[/tex] for the given inputs [tex]\( x = -4 \)[/tex], [tex]\( x = 0 \)[/tex], and [tex]\( x = 1 \)[/tex].

### Step-by-Step Solution:

#### 1. Evaluate [tex]\( f(-4) \)[/tex]:
Plug [tex]\( x = -4 \)[/tex] into the function:

[tex]\[ f(-4) = 3(-4)^2 - 4(-4) + 2 \][/tex]

Calculate each term separately:

[tex]\[ (-4)^2 = 16 \][/tex]

[tex]\[ 3 \times 16 = 48 \][/tex]

[tex]\[ -4 \times -4 = 16 \][/tex]

Add all terms together:

[tex]\[ f(-4) = 48 + 16 + 2 = 66 \][/tex]

So, [tex]\( f(-4) = 66 \)[/tex].

#### 2. Evaluate [tex]\( f(0) \)[/tex]:
Plug [tex]\( x = 0 \)[/tex] into the function:

[tex]\[ f(0) = 3(0)^2 - 4(0) + 2 \][/tex]

Calculate each term separately:

[tex]\[ 0^2 = 0 \][/tex]

[tex]\[ 3 \times 0 = 0 \][/tex]

[tex]\[ -4 \times 0 = 0 \][/tex]

Add all terms together:

[tex]\[ f(0) = 0 + 0 + 2 = 2 \][/tex]

So, [tex]\( f(0) = 2 \)[/tex].

#### 3. Evaluate [tex]\( f(1) \)[/tex]:
Plug [tex]\( x = 1 \)[/tex] into the function:

[tex]\[ f(1) = 3(1)^2 - 4(1) + 2 \][/tex]

Calculate each term separately:

[tex]\[ 1^2 = 1 \][/tex]

[tex]\[ 3 \times 1 = 3 \][/tex]

[tex]\[ -4 \times 1 = -4 \][/tex]

Add all terms together:

[tex]\[ f(1) = 3 - 4 + 2 = 1 \][/tex]

So, [tex]\( f(1) = 1 \)[/tex].

### Final Results:
- [tex]\( f(-4) = 66 \)[/tex]
- [tex]\( f(0) = 2 \)[/tex]
- [tex]\( f(1) = 1 \)[/tex]

These evaluations provide the values of the quadratic function at the specified points.