Question

evaluate linear functions
score: 1/5 penalty: 1 off
question
given $f(x) = -x + 4$, find $f(0)$.
answer

Explanation:

Step1: Substitute \( x = 0 \) into \( f(x) \)

To find \( f(0) \), we substitute \( x = 0 \) into the function \( f(x)=-x + 4 \). So we get \( f(0)=-(0)+4 \).

Step2: Simplify the expression

Simplify \( -(0)+4 \). Since \( -0 = 0 \), then \( 0 + 4=4 \).

Answer:

\( 4 \)