Part 1
when is a quadrilateral both a trapezoid and a parallelogram? complete the explanation.
when there are two pairs of parallel lines, which are lines with the same slope 9.
part 2 out of 2
is a quadrilateral ever a parallelogram but not a trapezoid? complete the explanation.
,no), since a parallelogram is a quadrilateral with (no pair, two pairs, one pair) of parallel lines and a
trapezoid is a quadrilateral with at least (no pair, two pairs, one pair) of parallel lines, a quadrilateral can
(sometimes, never) be a parallelogram but not a trapezoid.

Gocohcpuccphjvpjvvjiv

First locate the turning point (vertex) of the graph. which is at the coordinates x=5 and y=9 or (5; 9).to determine whether it's a maximum or mininum value, you have to discern whether the vertex's y-value is the highest value or lowest value the graph can reach. since the vertex's y-value, 9 is the highest value the graph can reach, it will be a maximum.another basic way to determine whether the vertex's value is max or min is to see if the graph is smiling or sad. if it's smiling, the turning point/vertex would be a minimum, while a sad parabola would have a maximum y-value at the vertex.