Find the y-intercept for the graph of the quadratic function.f(x) = 2 + 3x + x2
A. (0, 3)
B. (0, 2)
C. (0, 1)
D. (0, -2)
Answer: B
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A function f(x), a point x0, the limit of f(x) as x approaches x0, and a positive number ? is given. Find a number 
such that for all x, 0 < 
< ? ? 
< ?.f(x) = -8x + 1, L = -23, x0 = 3, and ? = 0.01
A. 0.005 B. 0.0025 C. -0.003333 D. 0.00125
Find the missing value and write a conclusion. If necessary, round the percentage to the nearest tenth.What percent of 56 is 70?
A. 80% of 56 is 70. B. 125% of 56 is 70. C. 1.3% of 56 is 70. D. 130% of 56 is 70.
Use Cramer's rule to solve the system. x + 2y - 3z + w = 7 3x + 4y - z + 2w = 4-2x + y + z - w = -3 x - y + 2z - 2w = 1
A. 
B. 
C. 
D. 
The graph represents the 24-hour day of a small-business owner.
If "worry" is another form of work, what fraction of the day is spent working?
A. 
B. 
C. 
D. 