G
Guest
Guest
:roll:
- (0,6.5) (.1,7.94) (.2,9.06) (.3,9.86) (.4, 10.34) (.5,10.5) (.6,10.34) (.7,9.86) (.8,9.06) (.9,7.94) (1,6.5)
The x= seconds y= feet
This was put into a table and I was asked to make an equation. ax^2 +bx+c. I know that 6.5 would be my y-int. To find A I must find the first and second differences of the table. I have continued the table further so I could see the difference of one unit. Which would help me find a. But I am not sure if I am on the right track. What will I do to find a. and then how would a find b. Since I am using 1/10 of a second...not a full unit. I know -b/2a= x on vertex. Still I am confused how to figure this equation out..especially if I were to be given a table that does not have the same difference....