Determine whether each set of ordered pairs shown below is from a geometric sequence or from an arithmetic sequence.


{(-3, 7.5) , (-2, 10) , (-1, 12.5)}

Ageometric sequence
Barithmetic sequence

Write the equation of the graph for the set of ordered pairs.


{(1, 150) , (2, 112.5) , (3, 84.375)}

Ageometric sequence
Barithmetic sequence




Write the equation of the graph for the set of ordered pairs

a)y=200(0.75)x

b)y=-2.5x+15

c)y=200(0.75)x

d)y2.5x+15