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$$
\begin{array}{l}{\text { A candle } 4.85 \mathrm{cm} \text { tall is } 39.2 \mathrm{cm} \text { to the left of a plane mir- }} \\ {\text { ror. Where is the image formed by the mirror, and what is the }} \\ {\text { height of this image? }}\end{array}
$$

$$
y=4.85 \mathrm{cm}
$$

$$
S=39.2 \mathrm{cm}
$$

$$
S^{\prime}=? ? \quad ,  y^{\prime}=??
$$

$$
S=-S' \Rightarrow S^{\prime}=-S
$$$$
= - 39.2 \mathrm{cm}
$$

$$
M=\frac{y^{\prime}}{y}=1
$$$$
\Rightarrow 1=\frac{y^{\prime}}{4.85} \Rightarrow y'=4.85 cm
$$

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