Definition: Another unit of measurement for angles. This one can be measured on the x-y coordinate plane. The number of these in an angle equals the number of radii it takes to measure a circular arc
described by that angle.

radians

Step-by-step explanation:

Another unit of measure for angles others then degrees are radians.

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation:

2y+y=5

add 2y and y