Q. The price value, V, of a car that is t years old is given by V=f(t)=17000−3100t. Find thr domain and range of f(t).
Identify Function Components: Identify the function and its components.V=f(t)=17000−3100t
Determine Domain of f(t): Determine the domain of f(t). The domain of f(t) is all values of t for which the function makes sense. Since t represents time in years, t must be non-negative (t≥0).
Calculate Zero Value Point: Calculate when the car value becomes zero or negative.Set V=0 for boundary of domain.0=17000−3100t3100t=17000t=310017000t=5.48
Interpret Domain Result: Interpret the result for domain. The car's value cannot be negative, so the maximum value for t is when V reaches zero, approximately at t=5.48 years. Thus, the domain is [0,5.48].
Determine Range of f(t): Determine the range of f(t). The range is the set of all possible values of V. From t=0 to t=5.48, V decreases from 17000 to 0.