Graph the parabola or ellipse. Include the directrix that corresponds to the focus at the origin.r = 
A. 
B. 
C. 
D. 
Answer: A
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Write the improper fraction as a mixed or whole number.
A. 6
B. 
C. 7
D. 8
Provide an appropriate response.A store sells two types of calculators. In order to cover overhead, it must sell at least 40 calculators total per week, and in order to satisfy distribution requirements, it must sell at least twice as many of type II as type I. Write a system of inequalities to describe the situation. Let x be the number of type I that it sells in a week and y be the number of type II that it sells in a week. Find the region described by the system of linear inequalities.
What will be an ideal response?
Determine the additive inverse of the given number.-15.3
A. 15.3 B. -3.15 C. 3.15 D. -15.3
Graph the piecewise linear function.f(x) = 
A. 
B. 
C. 
D. 