Y= -(x-7)^2+6
vertex=?
how to graph?

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)

Agrid shows the positions of a subway stop and your house. the subway stop is located at (-5,2) and your house is located at (-9,9). what is the distance, to the nearest unit, between your house and the subway stop?