Question

which table represents a linear function? x=1,2,3,4 y=3,7,11,15 x=1,2,3,4 y=3,8,15,21 x=1,2,3,4, y=3,9,3,9 x=1,2,3,4 y=3,9,27,81?

Answer 1

x=1,2,3,4 y=3,7,11,15

firstly find d such that d=7-3=4

afunction f(x)= 3+4(x-1)

and x= 1,2,3,4 y=3,9,27,81

y=x²