Question

Which table represents a linear function?

x 1 2 3 4 5
y 5 10 15 20 25

x 1 2 3 4 5
y 5 20 45 80 125

x 1 2 3 4 5
y 5 25 125 625 3,125

x 1 2 3 4 5
y 2 4 8 16 32

Answer 1

x 1 2 3 4 5

y 5 10 15 20 25

in x =n+1

in y=5n