or
Look at this table:
x y
–
3
–
21
–
2
–
13
–
1
–
5
0 3
1 11
Write a linear function (y=mx+b) or an exponential function (y=a(b)x) that models the data.
Based on the given data points, it looks like a linear function would be the best model to represent the relationship between x and y:
y = 4x + 3