Questions: Given the function below, evaluate f(0)
f(x) = 5 - 4-5x + 2
Transcript text: Given the function below, evaluate $f(0)$
\[
f(x)=5-4|-5 x+2|
\]
Solution
Solution Steps
To evaluate \( f(0) \) for the given function \( f(x) = 5 - 4|-5x + 2| \), we need to substitute \( x = 0 \) into the function and simplify the expression.
Solution Approach
Substitute \( x = 0 \) into the function \( f(x) \).
Simplify the expression inside the absolute value.
Calculate the absolute value.
Multiply by -4 and add 5 to get the final result.
Step 1: Substitute \( x = 0 \)
We start by substituting \( x = 0 \) into the function \( f(x) \):
\[
f(0) = 5 - 4|-5(0) + 2|
\]
Step 2: Simplify the Expression
Next, we simplify the expression inside the absolute value:
\[
f(0) = 5 - 4|-0 + 2| = 5 - 4|2|
\]
Step 3: Calculate the Absolute Value
Now, we calculate the absolute value:
\[
|2| = 2
\]
Thus, we have:
\[
f(0) = 5 - 4 \cdot 2
\]
Step 4: Perform the Multiplication and Final Calculation
Now we perform the multiplication:
\[
f(0) = 5 - 8
\]
Finally, we calculate:
\[
f(0) = -3
\]