gaokao 2025 Q5

gaokao · China · national-I_eol 5 marks Function Transformations
Let $f(x)$ be an even function defined on $\mathbf{R}$ with period 2. When $2 \leq x \leq 3$, $f(x) = 5 - 2x$. Then $f\left(-\frac{3}{4}\right) =$
A. $-\frac{1}{2}$
B. $-\frac{1}{4}$
C. $\frac{1}{4}$
D. $\frac{1}{2}$
Let $f(x)$ be an even function defined on $\mathbf{R}$ with period 2. When $2 \leq x \leq 3$, $f(x) = 5 - 2x$. Then $f\left(-\frac{3}{4}\right) =$\\
A. $-\frac{1}{2}$\\
B. $-\frac{1}{4}$\\
C. $\frac{1}{4}$\\
D. $\frac{1}{2}$