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.
0
2. 3 4
5
у 1.30 1.34 1.38 2.20 2.88 2.24
х
1
a
b
y=-0.01572 +0.365x+1.116
y = 0.01572 -0.365x + 1.116
cy=-0.0157° +0 0365x+1.116
d y=-0.0157° +0.365x-1116

d) 48

step-by-step explanation:

16,32,48,64,80,96,112,128,144,160,176,192,208,224,240,256,272,288,304,320,336

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.