**Answer:**

**y=1.32x-0.0022**

**Step-by-step explanation:**

Let the standard equation of parabola be y=a+bx+c ……. (1)

**Let y be the altitude of the ball and x be the distance traveled by the ball.**

Now by putting the points one by one, we get the required equation.

first point = (0,0)

golf ball travels a distance of 600 feet along the ground. Therefore point = (600,0)

At altitude of 200, it travels the distance of 300 feet(mid point) = (300,200)

By putting y=0 and x=0 in (1),

we get c=0,

By putting y=0 and x=600 we get

0 = 360000a+600b …………..(2)

By putting y=200 and x=300, we get

200=90000a+300b …………….(3)

Solving (2) and(3) we get, a=-0.0022 and b = 1.32

**So the required equation is : **

**y= =0.0022+1.32x**