Step-by-step explanation:

y =−3(x+0)2+5

The range of a parabola that opens down starts at its vertex (0,5)(0,5) and extends to negative infinity.

vertex:(0,5)

Domain: (−∞,∞),{x|x∈R}(-∞,∞),{x|x∈ℝ}

Range: (−∞,5],{y|y≤5}

axis of symmetry:

x=0

x intercept:

y-intercept(s): (0,5)

2) Domain: (−∞,∞),{x|x∈R}(-∞,∞),{x|x∈ℝ}

Range: [−8,∞),{y|y≥−8}

*The range of a parabola that opens up starts at its vertex (1,−8)(1,-8) and extends to infinity.

axis of symmetry:

(x = 1)

x intercept: (3,0) (-1,0)

y intercept: (0,-6)