Linear functions SAT question

Math · Algebra · Easy · Answer it here, explanation included.

The total cost $f (x)$ , in dollars, to lease a car for $36$ months from a particular car dealership is given by $f (x) = 36 x + 1, 000$ , where $x$ is the monthly payment, in dollars. What is the total cost to lease a car when the monthly payment is $$400$ ?

ExplanationShow

Choice C is correct. It's given that $f (x)$ is the total cost, in dollars, to lease a car from this dealership with a monthly payment of $x$ dollars. Therefore, the total cost, in dollars, to lease the car when the monthly payment is $$400$ is represented by the value of $f (x)$ when $x = 400$ . Substituting $400$ for $x$ in the equation $f (x) = 36 x + 1, 000$ yields $f (400) = 36 (400) + 1, 000$ , or $f (400) = 15, 400$ . Thus, when the monthly payment is $$400$ , the total cost to lease a car is $$15, 400$ .

Choice A is incorrect and may result from conceptual or calculation errors.

Choice B is incorrect and may result from conceptual or calculation errors.

Choice D is incorrect and may result from conceptual or calculation errors.

Drill this skill on Aceit

Adaptive practice, a daily plan, and score tracking take a free account so we can save your work.

Practice this skill

Linear functions SAT question

More Linear functions questions