The data set represents a month-to-month progression of gasoline prices over the course of several months in an unspecified city. Use a graphing calculator to determine the quadratic regression equation for this data set. x
0
1
2
3
4
5
y
1.30
1.34
1.38
2.20
2.88
2.24

a.
y = negative 0.015 x squared + 0.365 x + 1.116
c.
y = negative 0.015 x squared + 0.0365 x + 1.116
b.
y = 0.015 x squared minus 0.365 x + 1.116
d.
y = negative 0.015 x squared + 0.365 x minus 1.116