Determine whether the relation represents a function. If it is a function, state the domain and range.{(-2, -7), (0, 5), (5, 0), (6, -1)}
A. function
domain: {-7, 5, 0, -1}
range: {-2, 0, 5, 6}
B. function
domain: {-2, 0, 5, 6}
range: {-7, 5, 0, -1}
C. not a function
Answer: B
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and 
if the density at any point is inversely proportional to its distance from the origin.
A. 15k?
B. 
k?
C. 
k?
D. 90k?
Rewrite the equation in standard form. Find the center and radius of the circle.x2 + y2 + 4x + 10y + 29 = 36
A. (x + 2)2 + (y + 5)2 = 36 center (-2, -5), r = 36 B. (x + 5)2 + (y + 2)2 = 36 center (-5, -2), r = 6 C. (x + 2)2 + (y + 5)2 = 36 center (-2, -5), r = 6 D. (x - 2)2 + (y - 5)2 = 36 center (2, 5), r = 36
Solve the problem.Roberto invested some money at 8%, and then invested $2000 more than twice this amount at 10%. His total annual income from the two investments was $3000. How much did he invest at 10%?
A. $22,000 B. $20,000 C. $6000 D. $2200
Construct a truth table for the given statement.
?
?
A. ?p q StatementT T FT F FF T FF F T? B. ?p q StatementT T FT F TF T FF F F? C. ?p q StatementT T TT F FF T TF F T? D. ?p q StatementT T FT F TF T TF F T?