5. What type of function would best model the following data?
x: 4, 8, 12, 16, 20, 24, 28
y: 126, 160, 188, 205, 191, 158, 121
A) An exponential function
B) a cubic function
C) a quadratic function
D) a linear function
C) a quadratic function
The data appears to follow a parabolic curve rather than a straight line, cubic curve, or exponential curve. A quadratic function would best model this data.