Find the variation equation for the variation statement.y varies directly as the square of x; y = 16 when x = 2
A. y = 8x
B. y = 4x
C. y = 4x2
D. y = 16x
Answer: C
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Decide whether the expression is or is not an identity.csc2 
= csc2 x + cot x csc x
A. Not an identity B. Identity
What are the equations of Circle 1–Circle 5 on the template for Sam’s dartboard?
Sam is sketching a template on graph paper to use as a guide for his painted cork dart board. The diameter of Circle 1 is 2 feet and the distance between the edges of each of the next three pairs of circles is 1 foot.The distance between Circle 4 and Circle 5 is foot. Sam does not want axes through or touching his template and therefore wishes to sketch the dart board only in Quadrant I.At the closest points, he wants Circle 5 to be 1 unit from the y-axis and 1-unit from the x-axis. In this case:
Rewrite the expression as a sum or difference of logarithms or multiples of logarithms.log4 
A. log4(
) + log4(4)
B. log4(4) - log4(
)
C. log2(
) - log2(4)
D. 
log4(3) - log4(4)
Write an equation to represent the situation. Then, solve the equation.The quotient of 10 and a number is 2. Find the number.
A. 
= 2; 20
B. 
= 2; 20
C. 
= 2; 5
D. 
= 2; 5