posted by Jennifer W. on .
A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation y = 0.04x+ 8.3x + 4.3, 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?
What method(s) would you choose to solve the equation? Explain your reasoning.
x2 –6x + 8 = 0
1.Square roots; there is no x-term.
2.Factoring; the equation is easily factored.
3.Quadratic formula, completing the square or graphing; the coefficient of x2-term is 1, but the equation cannot be factored.
4.Quadratic formula, graphing; the equation cannot be factored easily since the numbers are large.
How many real-number solutions does the equation have?
7x2 + 8x + 5 = 0 (1 point)
infinitely many solutions