Coordinate Plane

Simply put, a coordinate plane is the name of a graph that has both an x-axis and a y­-axis. The points will be laid out in ordered pairs. It will be represented by a set of parentheses with the value of X first and the value of Y second. When plugging in points, it is important to go from side to side and then up and down when plotting the points. 

 

TIP: When answer choices are ordered pairs, it is important to look closely at the answers. Knowing which order the numbers are supposed to be in will help avoid tricky questions with tricky answer choices. 

 

For finding the distance between two different points it is possible to use the distance formula if it is known. Or, a right triangle can be drawn along the lines of the grid, with a2+b2 = c2 used to solve for the distance that is called for in the question. 

 

Midpoint

A midpoint of a line is found with an ordered pair. 

 

Slope

The slope of a line will be the steepness of the angle. The simples way to solve is to use "y  minus y over x minus x."