SOLUTION: The position of an object moving in a straight line is given by s(t)=t^2-8t, where s is in the feet and t is the time in seconds the object has been in motion. How long will it tak

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: The position of an object moving in a straight line is given by s(t)=t^2-8t, where s is in the feet and t is the time in seconds the object has been in motion. How long will it tak      Log On


   

Question 93: The position of an object moving in a straight line is given by s(t)=t^2-8t, where s is in the feet and t is the time in seconds the object has been in motion. How long will it take the object to move 11ft.
Answer by wynona(4) About Me  (Show Source):
You can put this solution on YOUR website!
Well, you have to find out t such that s(t) = 11. That is, t^2-8t = 11. Or t^2-8t-11 = 0. Solve it using my solver, here's the graph:
+graph%28+300%2C+200%2C+-4%2C+12%2C+-30%2C+30%2C+x%5E2-8x-11%29+