The profit function of a company is quadratic and has the form \( P(i)=a x^{2}+b x-110 \), where \( P \) is the profit (in Rands) and \( i \) is the number of items sold. When 30 items are sold, the profit is \( R 520 \) and when 40 items are sold the profit is \( R 1530 \). 4. The values of \( a \) and \( b \), respectively, are: A. 2 and -39 B. 3 and 39 C. 2 and 39

\( 6 a b ^ { 5 } + 9 a b ^ { 5 } c + c = \)

Which statement is true for the tables? (1 point) Both Table A and Table B represent functions. Both Table A and Table B do not represent functions. Table A does not represent a function, but Table B represents a function. Table A represents a function, but Table B does not represent a function.

4. Vereinfache und berechne. a) \( \left(2^{2}\right)^{4} \) b) \( \left(x^{3}\right)^{5} \) c) \( \frac{\left(18 a^{2} b^{-6}\right)^{-2}}{\left(27 a^{3} b^{-3}\right)^{-4}} \)

Ecuación 2. \( \quad 2 \mathrm{X}+6 \mathrm{Y}=34 \) \( \Rightarrow \) Este método resuelve el sistema multiplicando las ecuaciones de tal forma que una incógnita se elimine quedando el sistema solo con una variable.

Find the equation of the line that is perpendicular to \( y=-\frac{3}{4} x+1 \) and contains the point \( (9,12) \) \[ y=\frac{4}{3} x+[?] \]