You have data for many years on the average price of a barrel of oil and the average retailprice ofa gallon of unleaded regular gasoline. If you want to see how well the price of oilpredicts the priceof gas, then you should make a scatterplot with as the explanatory variable. PossibleAnswers

A.The price of oil
B.The price of gas
C.The year
D.Either oil price or gas price
E.Time

Part a : Slope is 40 and it interpret the rate of increase of balance in dollars in the account per day.

Part b :  y - 720 = 40(x - 3) ... Point-slope form. 40x - y +600 = 0 ... Standard form. g(x) = 40x + 600 ... Slope-intercept form.

Part c : $880

Step-by-step explanation:

The table of values represents a linear function g(x), where x is the number of days that have passed and g(x) is the balance in the bank account:

x  g(x)

0 $600

3 $720

6 $840

Part a : Therefore, the slope of the function will be and it interprets the rate of increase of balance in dollars in the account per day.

Part b : If we denote g(x) = y, then the equation that models the table will be

⇒ y - 720 = 40(x - 3) (1) Point-slope form.

⇒ 40x - y +600 = 0 (2) Standard form.

⇒ y = 40x + 600

⇒ g(x) = 40x + 600 (3) Slope-intercept form.

Part c : From equation (3), the balance in the account after 7 days will be

g(7) = 40(7) + 600 = 280 + 600 = 880 dollars. (Answer)