# Direct variation common core algebra 2 homework answers

### Question:

How do you write an arrow that turns 90 degrees around the origin?

### Answer:

Step 1

The arrow moves 90 degrees to the right every term.

Result

Up arrow

The angle of rotation is a way to measure how much a figure is turned around its centre of rotation. Most of the time, the angle of rotation is measured in degrees. We say how many degrees a turn is and in what direction it goes. Here is a shape that has been turned 90° both clockwise and counterclockwise around its centre.