(1.9 x 105)+(5.42 x 10-5) scientific notation​

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

Construct the graph that models the given situation

Is a square always, sometimes, or never a parallelogram