On 2 tructions ad the question carefully and select the best answer. "Jlang Ji-li has always done well at school. In addition to doing very well in her studies, she participates in educational reform," Teacher Zha. added.

Vervollständige Maries Rechnung. \[ \begin{aligned} f^{\prime}(x) & =\lim _{h \rightarrow 0} \frac{(x+h)^{2}-x^{2}}{h} \\ & =\lim _{h \rightarrow 0} \frac{x^{2}+2 \cdot x \cdot h+h^{2}-x^{2}}{h} \\ & =\lim _{h \rightarrow 0}(2 x+h) \\ & =\square\end{aligned} \]

Un albañl gañó \( \$ 2400000 \) for bardear un terreno cobrando a \( \$ 2500 \) el \( m^{2} \) ¿Coal es la soperficie de la barda? ¿sila altura de la barda es de 3 mi ¿cuál es so longitud?

\( 5 w - 9 a y - 9 b y + 5 b w \)

For the function below, (a) find the vertex; (b) find the axis of symmetry; (c) determine whether there is a maximum or a minimum value and find that value; and (d) graph the function. \( f(x)=-3 x^{2}+3 x+2 \) The parabola has a maximum. The parabola has a minimum. The maximum/minimum value of \( f(x) \) is \( \frac{11}{4} \).

\( \begin{aligned} \Delta & =2^{3} \text { gram } \\ \Delta & =6^{2} \text { gram } \\ & =4^{2} \text { gram } \\ & =5^{0} \text { gram }\end{aligned} \)