Determine the constant of variation for the stated condition.b varies directly as a, and b = 78 when a = 6.
A. k = 13
B. k = 72
C. k = 14
D. k = 
Answer: A
Mathematics
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Solve the problem.Find the equation of the line through (0, -8) and perpendicular to the line 
.
A. y = x + 8 B. y = ?x + 8 C. y = ?x - 8 D. y = x - 8
Mathematics
Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
A. y = 0.85x + 3.07 B. y = 0.75x + 4.07 C. y = 0.75x + 5.07 D. y = 0.95x + 3.07
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Use division properties of one and zero to quickly determine the quotient, or state that the expression is undefined.
A. Undefined B. 0 C. 8 D. 1
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Without actually converting, choose the most reasonable answer.The weight of a vitamin is about __________ .
A. 200 kg B. 20 kg C. 200 g D. 2 kg
Mathematics