Actividades dia 3 1. Para las siguientes funciones determine los puntos de corte con el eje \( x \) (si los hay). el punto de corte con el eje \( y \) y el vértice. \( f(x)=-8 x^{2}-32 x+6 \) \( f(x)=12 x^{2}+24 x+10 \) \( f(x)=2-12 x-2 x^{2} \) \( f(x)=2 x^{2}-16 x+8 \) \( f(x)=6 x^{2}-24 x+26 \) \( f(x)=-2 x^{2}+6 x-10 \)

3. At a school, \( 40 \% \) of the sikthegrade students said that hip-hop is their favorite kind of music. If 100 sixth-gade students preler hip hop music, how many sixth-grade studer are at the school? Explain or show your reasoning.

expunencial \( \left.\left(4^{2}\right)\left(2^{3}\right)^{2 x-5}\right)=8 \)

-простіть вираз: \( \begin{array}{ll}15 \mathrm{~m}^{2} \cdot\left(4 \mathrm{~m}^{3}\right)^{2} ; & \text { 2) }-0,5 \mathrm{~m}^{5} \cdot\left(2 \mathrm{~m}^{3}\right)^{4} \\ \left.-3 \mathrm{a}^{3} \mathrm{~b}^{4}\right)^{4} \cdot\left(-\frac{1}{8} a^{3} b\right) ; & \text { 4) }\left(-\frac{4}{5} m n^{4}\right)^{3} \cdot 25 m^{4} \mathrm{n}\end{array} \)

f) \( (-15 a b c+12 a b-9 a c-3 a) \div(-3 a) \)

(Express \( \frac{6}{7 h}-\frac{3-4 g}{14 h} \) as a single fraction in its simplest form. Ungkapkan \( \frac{6}{7 h}-\frac{3-4 g}{14 h} \) sebagai pecahan tunggal dalam bentuk termudah.