Question

apply the quadratic formula to find the roots of the given function, and then graph the function.

f(x) = y2 - 9
show work please

Answer 1

(y+3)(y-3) so y=3 and y=-3 which are the roots

Answer 2

do u know the formula for the quadratic equation

Answer 3

Yes, \[-b \pm \sqrt{b ^{2}-4ac}/2a\]

Answer 4

not sure how
\[f(x)=y^2-9\] makes sense

Answer 5

if it is
\[f(x)=x^2-9\] then the solutions to
\[x^2-9=0\] are 3 and -3 with your eyeballs, not with any formula
\[x^2-9=0\]
\[x^2-9\]
\[x=\pm3\]

Answer 6

thanks!!!

Answer 7

yw