A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the

Question

equation y = 0.04x + 6.5x + 6.7, where x is the horizontal distance, in meters, from the starting point on the
roof and y is the height, in meters, of the rocket above the ground. How far horizontally from its starting point
will the rocket land? Round your answer to the nearest hundredth. (Hint: When does y = 0)

Answer 1

Try typing instead of copying.
You surely meant
y = 0.04x^2 + 6.5x + 6.7
Even that is wrong, since it would indicate that the rocket never came back down. That 0.04x^2 is clearly wrong. Whatever. Fix your equation as necessary, and then just solve the quadratic in the usual way - use the quadratic formula.