Simplify.(7x2 - 8x - 4) + (6x2 - 8x + 7)
A. 13x2 - 8x + 3
B. 42x2 - 8x + 3
C. 13x2 - 16x + 3
D. 13x4 - 16x2 + 3
Answer: C
Mathematics
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Solve the problem.A rock is thrown vertically upward from the surface of an airless planet. It reaches a height of 
meters in t seconds. How high does the rock go? How long does it take the rock to reach its highest point?
A. 595 m, 5 sec B. 1080 m, 10 sec C. 300 m, 5 sec D. 600 m, 10 sec
Mathematics
Perform the indicated operation. Simplify, if possible.
+ 
- 
A. 
B. 
C. 
D. 
Mathematics
The graph of f(x) = ax2 + bx + c is given in the figure. Determine whether the discriminant is positive, negative, or zero.
A. Positive B. Negative C. Zero
Mathematics
Determine any data values that are missing from the table, assuming that the data represent a linear function.
A. 9 B. 3 C. 11 D. 7
Mathematics