For the graph of the function \( f(x) = 5^{x-1} - 2 \), what are the coordinates of the y-intercept?

What values of \( a \) satisfy the equation \( (a - 5)(a + 1) = 0 \)?

\( f(x)=(2 x+3)^{2}-12 x \) odd or eveh?

Jika \( \left(\begin{array}{cc}-2 & 2 \\ 5 & y\end{array}\right)\left(\begin{array}{ll}5 & 3 \\ x & 4\end{array}\right)=\left(\begin{array}{cc}-6 & 2 \\ 27 & 19\end{array}\right) \), cari nilai \( x \) dan \( y \). If \( \left(\begin{array}{cc}-2 & 2 \\ 5 & y\end{array}\right)\left(\begin{array}{cc}5 & 3 \\ x & 4\end{array}\right)=\left(\begin{array}{cc}-6 & 2 \\ 27 & 19\end{array}\right) \), find the value of \( x \) and \( y \)

\( \frac{4 x-9 x^{3}}{3 x^{2}-4 x-4} \) A two digit number is such that three times the sum of its digits is less than the value of the number by 8 . When the digits are reversed the value of the number increases by 9 . Find the number. ( 3 mks )

If \( f(x)=\frac{\sqrt{x+2}}{3-3 x^{2}} \), for which values of \( x \) 1.2.2 \( \quad f(x) \) non real.