Question g-m-00
The given function models the number of gallons of gasoline that remains from a full gas tank in a car after driving miles. According to the model, about how many gallons of gasoline are used to drive each mile?
g m = - 0.05 m + 12.1 The given function g models the number of
Hard-difficulty · SAT Math · Linear Functions — Slope calculation and interpretation. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.
Answer explanation
Choice A is correct. It's given that the function models the number of gallons that remain from a full gas tank in a car after driving miles. In the given function , the coefficient of is . This means that for every increase in the value of by , the value of decreases by . It follows that for each mile driven, there is a decrease of gallons of gasoline. Therefore, gallons of gasoline are used to drive each mile.
Choice B is incorrect and represents the number of gallons of gasoline in a full gas tank.
Choice C is incorrect and may result from conceptual errors.
Choice D is incorrect and may result from conceptual errors.
More Linear Functions practice questions
- x 10 15 20 25 f x 82 137 192 247 The table shows
- Line k is defined by y = 17 7 x + 4 . Line
- An object hangs from a spring. The formula relates the length , in centimeters,
- Oil and gas production in a certain area dropped from 4 million barrels in
- Sean rents a tent at a cost of $ 11 per day plus a
- The line graphed in the xy -plane below models the total cost, in dollars,
- Line p is defined by 2 y + 18 x = 9 . Line
- The equation E t = 5 1.8 t gives the estimated number of employees
Browse all Heart of Algebra practice questions or return to the full SAT question bank.