help Im very lost

Question

+1

483

2

+201

The red parabola shown is the graph of the equation $ay^2+by+c=x$ . Find $a+b+c$ .

very need help im lost

Each tick mark on the graph is one unit.

jxc516 Mar 10, 2021

Guest · Answer 1 · 2021-03-10T06:00:50

The vertex of the graph is (5,-4), so the equation of the parabola is

x = -(y + 4)^2 + 5

= -y^2 - 8y - 16 + 5

= -y^2 - 8y - 9.

a + b + c = (-1) + (-8) + (-9) = -18.