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.

The correct option is a.

Step-by-step explanation:

The general form of a quadratic regression equation is

                        ..... (1)

Using graphing calculator we get

Substitute these values in equation (1) to find the quadratic regression equation for this data set.

Therefore the correct option is a.

c: y > - 1/6x + 1

step-by-step explanation:

dashed line - meaning this < or > also not equal

solid line - meaning this < or > also equal

your answer is c because y > means up & it's shaded up, but y < means down

hope this ! : )