SAT Test review

For what value of x is the equation  $2^{\left(2x+7\right)}\ =\ 2^{15}$  true?

• 2

• 4

• 11

• 16

• 44

 Let the function f be defined as   $5x^{2\ }-7\left(4x+3\right)$ What is the value of f(3) ? 

• -18

• -26

• -33

• -60

• -75

When $x\ =\ \frac{1}{2}$  , what is the value of , what is the value of  $\frac{8x\ -3}{x}?$  

•  $\frac{1}{2}$  

• 2

•  $\frac{5}{2}$  

• 5

• 10

What is the sum of the solutions of the 2 equations below? 
 $8x\ =\ 12$  
2y + 10 = 22

• 2  $\frac{2}{5}$  

• 7  $\frac{1}{2}$  

• 9

• 10

• 17  $\frac{1}{2}$  

What is the value of the expression below?
 $\left|\left|-8+4\right|-\left|3-9\right|\right|$  

• -18

• -2

• 0

• 2

• 18

What is the slope of the line through (−2,1) and (2,−5) in the standard (x,y) coordinate plane?

• $\frac{3}{2}$

• 1

• -1

• $-\frac{3}{2}$

• -4

Which of the following represents the equation of the line with an x-intercept of 5 and y intercept of 6?

• y - 6 = (-6/5)(x - 5)

• y - 6 = (-5/6)(x - 5)

• y - 6 = (-6/5)x

• y - 6 = (-5/6)x

If y varies inversely as the square of x, then when x is multiplied by 4, y will be

• divided by 16

• divided by 2

• multiplied by 16

• multiplied by 2

 $3x-5y\ =\ -11$  
 $x=1-3y$  
What is the solution (x,y) to the system of equations above?

• (-5,2)

• (-2,1)

• (1,0)

• (4,-1)

 $y+2x=20$  

 $6x-5y=12$ 
What is the solution (x,y) to the system of equations above?

• (-7,6)

• (-6,7)

• (6,7)

• (7,6)