For one athlete, the path of the javelin can be modeled by the equation yy = −0.004xx2 + 0.35xx + 1.5 where xx is the horizontal distance, in meters, the javelin travels from the thrower and yy is the height, in meters, of the javelin.

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.

think the answer is 30 degrees. if not than it is 20 degrees. not 100% sure. let me know if it was right.

gill russ