Question

find the quadratic function y=ax^2+bx+c whose graph passes through the given points. (-1,14) (1,4) (3,2)

Answer 1

dear u should put your data in your function i mean :
14=a(-1)^2+(-1x+c
4=a1^2+b1+c
2=a3^2+b3+c
now you have 3 equation and 3 unknown parameter so u can solve it .