Question

Is the vertex maximum or a minimum​

Answer 1

Maximum

Explanation:

It is the maximum of the graph because it is the highest (MAXIMUM) point on the graph that the line reaches. If it were upside down, and the vertex was at the bottom and was the lowest point of the line, then it would be the minimum.

Answer 2

Explanation:

In this case the vertex is a maximum since it's in the shape of a hill not a valley. Vertex is (0,4)