Question

For the function f(x) = -(x + 1)² + 4, identify the vertex, domain, and range.

Answer 1

Vertex: (-1, 4)

Domain: All Real Numbers

Range: y < or equal to 4

Explanation:

Vertex: Using my calculator, i determined the vertex. The vertex is the most bottom/top point of the parabola, depending on if it opens down or up.

Domain: All the answers have all real numbers so its obvious.

Range: the parabola opens down at (-1, 4), so all the numbers on the y axis below 4 fit in with the line