Question

Find the equation of the quadratic function that passes through the points (-2,18), (3,-2) and (1,0)

Answer 1

Help :/

Answer 2

ok so we have \(ax^2+bx+c=0\).
use the root

\(0=a*1^2+b*1+c=\\a+b+c=0\)

then use another point
\(18=4a-2b+c\)

use the last point

\(-2=9a+3b+c\)

can you solve this system of three equations to find \(a,c\) and \(c\)?

Answer 3

erase the =0 from the first line.

Answer 4

and the obvious typo in the last line:)

Answer 5

Thanks a lot :)