1. Stopping distance d (in ft) of the car going v mi/h is given by d= v+1.0v^2. As d= f(v), compute f(40), f(2v), and f(80) using both f(v) and f(2v).
a. f(40)
b. f(2v)
c. Utilize f(v) to find f(80). Utilize f(2v) to find f(80)
2. Solve given system of equations by Gaussian elimination. If there is the unlimited number of solutions, compute two of them.
3x-2y+z=8
4y-6x-2z=9
3. In solving system of equations 4x+6y=2, -18y-12x=7. what conclusion can be drawn.
a. there is exactly one solution
b. there are no solutions
c. there is an unlimited number of solutions
d. there is at least one solution