Find the quadratic function that has a vertex at (−2,−4) and goes through the point (−1,−5).
f(x)=
the vertex tells you that
f(x) = a(x+2)^2 - 4
so plug in your point to find a:
-5 = a(-1+2)^2 - 4
f(x)=
f(x) = a(x+2)^2 - 4
so plug in your point to find a:
-5 = a(-1+2)^2 - 4