Graph the function. 22. \( f(x)=\left\{\begin{array}{ll}2 x+3 & \text { if } x<4 \\ x-1 & \text { if } x \geq 4\end{array}\right. \)

Simpept 3.13 - Multiplying Complex Numbers Sollowing expression: \( 2 i(5+3 i) \)

Solve the inequality. Graph the solution. \( \begin{array}{lll}\text { (7) } 5.8 y+5<3 & \text { 6. } 3 p+2 \geq-10 & \text { 7. } 2>8-\frac{4}{3} h \\ \text { 8. }-2>\frac{m}{6}-7 & \text { 9. }-1.2 b-5.3 \geq 1.9 & \text { 10. }-1.3 \geq 2.9-0.6 r\end{array} \)

What are \( a \) and \( b \) when you write \( \sqrt{-16} \) in the form \( a+b i \), where \( a \) and \( b \) are real numbers?

Give the domain of \( (x)=\frac{x+2}{2 x^{2}-5 x-18} \) using interval notation The domain of \( f(x) \) is:

\( \begin{array}{lll}\text { 5. } 8 y+5<3 & \text { 6. } 3 p+2 \geq-10 & \text { 10. }-1.3 \geq 2.9-0.6 r \\ \text { 8. }-2>\frac{m}{6}-7 & \text { 9. }-1.2 b-5.3 \geq 1.9 & \text { 10. }\end{array} \)