The Front Face of a shampoo bottle is a parabola. The bottle is to have a height of 185mm and the length of the base is to be 70mm.
(a) Use the y-axis as the axis of symetry for the parabola and deveolp a rule which will produce a parabola to fit these requirements.
Can any1 help?
The roots of the parabola must be -35 and 35 if the y axis is the axis of symetry.
b must equal Zero because the parabola is not shifted left or right. So that leaves us with the equation:
c is 185 because when an x value of 0 is subbed and a y value of 185 is subbed in c is denoted to be 185.
That leave us to find a.
Sub in 35, 0 zero for x and y values respectively and you will find a = -185/1225. Leaving us with the equation:
And it seems to work fin when I sub values in I havn't looked into simplifying it.
(Hurray I answered my first "Help Me!" on the forum )
Last edited by Zmurf (2006-05-09 22:23:52)
"When subtracted from 180, the sum of the square-root of the two equal angles of an isocoles triangle squared will give the square-root of the remaining angle squared."
Thankyou so much!!!!