Question

Quadratic Functions graph

Answer 1

See below

Explanation:

Dome shaped parabola so 'a' is negative

'c' is determined where x = 0

this value is -1

Axis of symmetry is the x value of the vertex (which is the high point of the dome)

x = -2

Answer 2

y=-x^2-4x-1

Explanation:

when it is an arch like an upside down U then its

-x^2

it passes through the y axis at -1

its vertex or high point is -2,3 so its

-4x