Determine the slope of the line 8x − 4y − 9 = 0.
1/2
2
3
4

8x-4y-9=0
-8x -8x

-4y-9 = -8x
+9 +9
-4y = -8x+9

Divide by 4 on both side to have y by itself and you get

y = 2x - 9/4

The slope in this equation is 2x, so answer is 2.

Answercounterclockwise rotation about the origin by 180 degrees followed by reflection about the y-axisexplanationthe given figure has verticesrecall that for counterclockwise rotation about the origin, when we rotate figure pqrs counterclockwise through an angle of 180° about the origin, the coordinates will becomenext, we reflect in the y-axis by negating the x-coordinates of the resulting figure to obtain,therefore the correct answer is c