If y varies directly as x, and y is 18 when x is 5, which expression can be used to find the value of y when x is 11?

5/11 = 18/y
5 y = 18 · 11
5 y = 198
y = 198 : 5 
y = 39.6

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