2. Find the equation of a parabola with axis parallel to 0y and passing through (1, 9), (-2, 9), (-1, 1).

Question

2.	Find the equation of a parabola with axis parallel to 0y and passing through (1, 9), (-2, 9), (-1, 1).

alekos · Answer

the general form of this equation will be  y = ax^2 + bx + c

so, all we need to do is substitute each point in this and form three new equations in terms of a, b & c, after which we use simultaneous equations to solve the co-efficients.

alekos · Answer

give it a try and see what happens

bloodydiamond · Answer

Thank you

bloodydiamond · Answer

So I should make 3 equations?

alekos · Answer

yes, that's right.  3 equations with 3 unknowns will allow you to solve a,b and c