document.write( "Question 1174136: While playing mini golf, you hit the ball off of a wall to attempt at making it in the hole. The ball is located at (5,4) and the hole is located at (9,8). The point where the ball hits the wall is (7,0). Write an equation for the path of the ball and then determine if you will make your putt. Vertex formula must be used.\r
\n" ); document.write( "\n" ); document.write( "I have tried this problem a different way and discovered that the putt is not made. I also know that I should substitute the vertex, (7,0) for (h,k). If I substitute the first coordinate, (5,4) into this equation believe I use 5 for the x value and 4 for the y value, resulting in \"a=1\". If I do the same thing again with the other coordinate \"a=2\" I am not sure how I am supposed to be looking at this to determine whether or not the putt missed.
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Algebra.Com's Answer #799538 by Boreal(15235)\"\" \"About 
You can put this solution on YOUR website!
Given the vertex is (7, 0) the equation is f(x)=a(x-7)^2+0
\n" ); document.write( "f(5)=4=a(-2)^2+0 and a=1 as you found.
\n" ); document.write( "The vertex is symmetrical around the line x=7, so (5, 4) and (9, 4) are points, so you wouldn't make the putt. What you want to know is given the equation, does (9 ,8) lie on the line? It doesn't.
\n" ); document.write( "also f(9)=2^2+0 so (9, 4) would be the ball's position.\r
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