Functions

[Donald Duck]

I need help to find the equation of a function represented through a word problem. The word problem is: Lionel Messi kicks a soccer ball from an initial height of 1 meter above the ground. The soccer ball reaches a maximum height of 2 meters in 4 seconds. The ball reaches the ground at 7 seconds. Determine the equation of the function.

 

[Harry_the_cat]

Have you drawn a diagram? What shape is it? What is the turning point? What is another point on the curve?