Find the coordinates of the vertex and x-intercepts for the quadratic function.f(x) = x2 + 2x + 1
A. vertex (-1, 0)
x-intercept (-1, 0)
B. vertex (-1, 1)
x-intercept (2, 0)
C. vertex (1, 1)
x-intercept (2, 0)
D. vertex (1, 0)
x-intercept (1, 0)
Answer: A
Mathematics
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A. 
B. 3
C. 
D. 
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A. 458 B. 3268 C. 3279 D. 454
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A. 2,820,000 B. 2,819,501 C. 2,819,000 D. 2,821,000
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Find an equation of variation for the given situation.y varies jointly as x and z, and y = 111.51 when x = 5.9 and z = 9
A. y = 5.1xz
B. y = 
C. y = 2.1xz
D. y = 0.21xz
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