A function f (x) = x2 is given. Answer the following question for the function f(x). (i) What is the algebraic nature of the function?
(ii) Write the name of the locus of the curve.
(iii) Write the vertex of the function.
(iv) Write any one property for sketching the curve.
(v) Write the domain of the function.​

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?