which function rule matches the nput outpit table

Question

In x\ 1 2 3 4 5 

Out y7 11 15 19 23 

(Numbrrs are suppose to be directly under others( 

Y=3 + 5x 

Y = 3+4x

Y=4+3x

Y=2+4x

Answer 1

Which function rule matches the input output table?

. In x: 1 . 2 . 3 . 4 . 5
Out y: 7 11 15 19 .23

 

Δy/Δx = 4/1 = 4 for all points.

 

y - 7 = 4(x - 1)

 

y = 4x - 4 + 7

 

y = 4x + 3