Simplify.
- 
+ 4
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.The position of a particle moving along a coordinate line is s = 
with s in meters and t in seconds. Find the particle's acceleration at 
A. 
m/sec2
B. - 
m/sec2
C. - 
m/sec2
D. 1 m/sec2
Determine the vertex of the graph of the parabola.y = x2 + 2x - 3
A. (- 1, 4) B. (- 1, - 4) C. (1, - 4) D. (1, 4)
Solve the problem.Suppose that the x-intercepts of the graph of y = f(x) are 4 and 5. What are the x-intercepts of 
A. -3 and -2 B. 4 and 5 C. 20 and 35 D. 11 and 12
Solve the problem.A developer wants to enclose a rectangular grassy lot that borders a city street for parking. If the developer has 212 feet of fencing and does not fence the side along the street, what is the largest area that can be enclosed?
A. 8427 ft2 B. 11,236 ft2 C. 5618 ft2 D. 2809 ft2