SAT Math Practice Question #38935 - SATify | SATify
#38935
coordinate geometry
substitution
graphs
linear equations
algebra
functions
hard
90 sec
Calculator OK
The height of a candle, in centimeters, as it burns is modeled by the function C(t)=−0.5t+20, where t is the time in hours since the candle was lit. What was the initial height of the candle, in centimeters, when it was first lit?
• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-). • Fractions must be in lowest terms. • Mixed numbers must be converted to improper fractions.
