The following table shows gas prices at one station, based on the number of months since January 2015. Months since January 2015, x 0 12 24 36
Price of Gas (dollars per gallon), y 2.45 3.25 3.12 3.06

If the curve of best fit for the data is y = -0.0012x2 + 0.065x + 2.45, what is the expected price per gallon in January 2019?

A. $2.63 per gallon
B. $3.25 per gallon
C. $2.81 per gallon
D. $3.33 per gallon

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.

answer: your answer is c

step-by-step explanation: