Workers preparing for the city’s Fourth of July celebration shoot an object straight up with an initial velocity of 210 ft/s2 from a height of 3 feet above the ground. Will the object reach a height of 670 feet 0, 1, or 2 times? Use the equation h=-16t^2+vt+c where v is the initial velocity in feet per second and c is the initial height in feet of the object above the ground. Use the discriminant to explain your answer.
A
1 time; The discriminant is zero, so the equation has one solution.
B
Cannot determine. There is no discriminant in the equation.
C
0 times; The discriminant is negative,

Question

Workers preparing for the city’s Fourth of July celebration shoot an object straight up with an initial velocity of 210 ft/s2 from a height of 3 feet above the ground. Will the object reach a height of 670 feet 0, 1, or 2 times? Use the equation h=-16t^2+vt+c where v is the initial velocity in feet per second and c is the initial height in feet of the object above the ground. Use the discriminant to explain your answer.
A 
1 time; The discriminant is zero, so the equation has one solution.
B 
Cannot determine. There is no discriminant in the equation.
C 
0 times; The discriminant is negative,

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