Graph the function using its vertex, axis of symmetry, and intercepts.f(x) = -x2 - 8x 

A. vertex (4, 16)
intercepts (0, 0), (8, 0)
 
B. vertex (-4, -16)
intercept (0, -32)
 
C. vertex (-4, 16)
intercepts (0, 0), (-8, 0)
 
D. vertex (4, -16)
intercept (0, -32)


Answer: C

Mathematics

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A. Yes B. No

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A.
B.  
C. x + 2
D.  

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Express the given vector as a linear combination of the unit vectors i and j.s = 

A. -15i - 9j B. -9i - 15j C. 15i - 9j D. 9i + 15j

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Use a calculator to find a value of ? between 0° and 90° that satisfies the statement below. Write your answer in degrees and minutes rounded to the nearest minute. ?  cos ?= 0.5673 ? 

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Mathematics