

1. 
The math scores, x, and chemistry scores, y, for six students are given in the table. Use a graphing calculator to find the Pearson productmoment correlation. 





A. 
about 0.74 
B. 
about 0.68 


C. 
about 0.71 
D. 
about 0.65 


Hint 


2. 
Which is the graph of the inequality y x  3? 


A. 

B. 



C. 

D. 



Hint 


3. 
The graph y = 4  2x is symmetric with respect to __________. 


A. 
both the xaxis and the yaxis 
B. 
the xaxis 


C. 
the yaxis 
D. 
neither the xaxis nor the yaxis 


Hint 


4. 
A family has a monthly net pay N which is 70% of their gross monthly pay G. They decided to subtract their monthly food allowance of $350 from their monthly net pay and invest 5% of the remainder. Write an equation for the investment each month I, given the above restrictions. 


A. 
I = 0.05(0.7G  350) 
B. 
I = 0.95(0.7G  350) 


C. 
I = 0.95(0.3G  350) 
D. 
I = 0.05(0.3G  350) 


Hint 


5. 
If y varies jointly as the square of x and the cube of z and y = 9 when x = 3 and z = 4, find y when x = 8 and z = 5. 


A. 
40 
B. 
45 


C. 
125 
D. 
100 


Hint 


6. 
Determine the zeros of the function y = x^{3} + 2x^{2}  5x  6. 


A. 
3, 1, 4 
B. 
1, 2, 3 


C. 
3, 2, 0 
D. 
3, 1, 2 


Hint 


7. 
Solve . 


A. 
3 
B. 
2 


C. 
0 
D. 
1 


Hint 


8. 
Write north latitude 44° 10' 26" as a decimal rounded to the nearest thousandth. 


A. 
44.174° 
B. 
44.172° 


C. 
44.177° 
D. 
44.173° 


Hint 


9. 
Express as a trigonometric function of an angle in Quadrant I. 


A. 

B. 



C. 

D. 



Hint 


10. 
Write parametric equations of y = 2x + 5. 


A. 
x = t and y = 2t  5 
B. 
x = 2t + 5 and y = t 


C. 
x = t and y = 2t + 5 
D. 
x = t and y = 2x  5 


Hint 


11. 
Convert log_{5} 145 to a natural logarithm. 


A. 

B. 



C. 
ln 145  ln 5 
D. 
ln 5  ln 145 


Hint 


12. 
Write as a fraction. 


A. 

B. 



C. 

D. 



Hint 


13. 
Write the equation of the line that is parallel to 2x  3y  15 = 0 and that passes through the point (3,4). 


A. 
2x  3y + 6 = 0 
B. 
2x + 3y + 6 = 0 


C. 
2x  2y + 6 = 0 
D. 
2x + 5  3 = 0 


Hint 


14. 
The image of after Rot_{180} · Ryaxis is the same as which other reflection, if the vertices are A(1,1), B(2,6), C(6,4)? 


A. 
none of these 
B. 
reflection over the line y = x 


C. 
reflection over the yaxis 
D. 
reflection over the xaxis 


Hint 


15. 
Use matrices to determine the coordinates of the image of with vertices A(3,4), B(5,2) and C(6,5) once it is rotated 90°. 


A. 
A'(4,3), B(2,5) and C'(5,6) 


B. 
A'(3,4), B(5,2) and C'(6,5) 


C. 
A'(3,4), B(5,2) and C'(6,5) 


D. 
A'(3,4), B(5,2) and C'(6,5) 


Hint 


16. 
Determine the slant asymptote for f(x) = . 


A. 
y = x + 3 
B. 
y = 4 


C. 
y = x + 4 
D. 
y = x + 3 


Hint 


17. 
Solve + 1 = 2 sin x for all real values of x. 


A. 
+ 2k 
B. 
k 


C. 
+ k 
D. 
+ 2k 


Hint 


18. 
Identify the graph of the equation 4x^{2} +3xy + 6y^{2}  6 = 0 then find to the nearest degree. 


A. 
parabola; 
B. 
hyperbola;  28° 


C. 
circle; 56° 
D. 
ellipse;  28° 


Hint 


19. 
Find the sum of the first seven terms of the geometric series Round to the nearest hundredth. 


A. 
11.56 
B. 
3.24 


C. 
18 
D. 
17.33 


Hint 


20. 
Write a sequence that has two geometric means between 6 and 


A. 



B. 



C. 



D. 



Hint 

