The coordinates of point a on a grid are (−2, −4). point a is reflected across the y-axis to obtain point b. the coordinates of point b are (
, −4).

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.

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?

Use the given information to determine the exact trigonometric value.