Question

Give the next three terms of the sequence 5, 9, 13, 17, 21, 25,... Then graph the sequence.

Answer 1

a=5 and d=4, so the graph is just the line
y=5+4(x-1)=4x+1

all arithmetic sequences are just straight lines, because of the constant d (the slope of the line)

Answer 2

5,_,_,17