K kpad5991 Member Joined Dec 29, 2016 Messages 238 Gender Male HSC 2018 Aug 23, 2017 #1 Use the four standard forms (x^2 = 4ay, etc) to find the equation of the parabola with vertex the origin and axis vertical, passing through (4,1)
Use the four standard forms (x^2 = 4ay, etc) to find the equation of the parabola with vertex the origin and axis vertical, passing through (4,1)
D Drongoski Well-Known Member Joined Feb 22, 2009 Messages 4,255 Gender Male HSC N/A Aug 23, 2017 #2 kpad5991 said: Use the four standard forms (x^2 = 4ay, etc) to find the equation of the parabola with vertex the origin and axis vertical, passing through (4,1) Click to expand... This can only be an upright parabola whose standard form is: x^2 = 4ay Since (4,1) lies on this parabola, 4^2 = 4 x a x 1 ==> a = 4 .: eqn of this parabola is: x2 = 16y Last edited: Aug 23, 2017
kpad5991 said: Use the four standard forms (x^2 = 4ay, etc) to find the equation of the parabola with vertex the origin and axis vertical, passing through (4,1) Click to expand... This can only be an upright parabola whose standard form is: x^2 = 4ay Since (4,1) lies on this parabola, 4^2 = 4 x a x 1 ==> a = 4 .: eqn of this parabola is: x2 = 16y
