1. Write precise mathematical definition for the following terms: d) Simple graphe) Equivalence classf) Reflexive relation

A) both a function and NOT a function because the vertical line test doesn't work B) NOT a function because the vertical line test intersects the graph in more than one point C) simply a relation D) a function because the vertical line test only intersects the graph in one point

2. Write the domain and range of each relation using proper notation. а) b) 4 yA 3 8- y = 0.5(x + 3)2 -1 6- 2 4- -4 -3 -2 -1 1 2 3 -1 -2 -8 -3 -2 -4 D: D: R: R:

Use graphs to find the set. a) (-7, 0) ∩ [-4, 2] b) (-10, 0) ∪ [-1, 5]

D)would these be discrete or continuous relationships  e) determine whether the 3rd column (#of toothpicks added) is arithmetic, geometric or neither. Justify the answer h)determine the domain and range of the model