Algebra 2 Review

When $\left(2x-3\right)^2$ is expanded, the result is

•  $4x^2-9$  

•  $4x+9$  

•  $4x^2-12x+9$  

•  $4x^2+12x-9$  

In the simplest form,  $\sqrt{-50}$  is equivalent to

•  $2i\sqrt{5}$  

•  $5i\sqrt{2}$  

•  $5\sqrt{2}$  

•  $25i\sqrt{2}$  

The graph of the equation  $y=3^x$  represents a graph of

• linear graph

• circle graph

• parabola

• exponential

The value of  $i^{18}$  is

• 1

• i

• -1

• -i

What is the product of the roots of the equation  $-8x^2+3x+2=0$ ?

•  $-\frac{1}{4}$  

•  $2$  

•  $\frac{3}{16}$  

•  $-2$  

The roots of the equation  $5x^2+11x-3=0$  
*hint* use the quadratic formula

•  $\frac{-11\pm\sqrt{61}}{10}$  

•  $\frac{11\pm\sqrt{61}}{10}$  

•  $\frac{-11\pm\sqrt{181}}{10}$  

•  $\frac{11\pm\sqrt{61}}{10}$  

The value of  $\frac{x^{-2}}{y^{-4}}$  when x=3 and y=2

•  $\frac{8}{6}$  

•  $\frac{16}{9}$  

•  $-\frac{16}{9}$  

•  $\frac{9}{16}$  

The sum of  $2-\sqrt{-9}$  and  $-5-\sqrt{-16}$   is

•  $-7-\sqrt{-25}$  

•  $-3-\sqrt{-25}$  

•  $-7-7i$  

•  $-3-7i$  

What is the inverse of

{(5,4) (6,-1) (7,2) (-1,4)}?

• {(5,4) (6,-1) (7,2) (-1,4)}

• {(-5,-4) (-6,1) (-7,-2) (1,-4)}

• {(4,5) (-1,6) (2,7) (4,-1)}

• {(-4,-5) (1,-6) (-2,-7) (-4,1)}

What is the conjugate of -2 + 3i?

• -3 +2i

• -2 - 3i

• 2 - 3i

• 3 + 2i