15. a) Challenge Which is a mapping diagram of the ordered pairs {(5,10), (10,20), (15,30), (20,40), (25,40)}?

b) Is the relation a function?

c) Describe how you can use different representations of a relation to analyze
a situation.

Can someone me with this problem . show your work .

Which of the following three dimensional figures has a circle as it’s base

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.