Multiply the polynomials using the FOIL method. Express the answer as a single polynomial in standard form.(-2x + 10y)(-4x + 5y)
A. 8x2 - 50xy - 50y2
B. 8x2 - 40xy + 50y2
C. 8x2 - 50xy + 50y2
D. 8x2 - 10xy + 50y2
Answer: C
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If a rock is thrown downward with an initial velocity of 8 feet per second, then its velocity 
, in feet per second, after 
seconds is given by
?
?
By how much does velocity increase over a 4-second period?
A. 32.16 feet per second
B. 128.09 feet per second
C. 32.00 feet per second
D. 128.00 feet per second
Use a graphing calculator to solve the linear equation.-6x + 9 + 4x = -2x + 14
A. ? B. {-9} C. {5} D. all real numbers
The graph of the function y = f(x) is given below. Sketch the graph of y = 
.
A. 
B. 
C. 
D. 
Solve the problem.A projectile is thrown upward so that its distance above the ground after t seconds is 
After how many seconds does it reach its maximum height?
A. 17 s B. 8 s C. 34 s D. 25.5 s