Quadrants
A coordinate plane
has four distinct areas
known as quadrants. The
quadrants are numbered
counterclockwise, starting
from the top right. They
help determine generally
whether x and y are
positive or negative.
Sometimes knowing what
quadrant a point is in and
what that means is all you
need to find the answer.Some of the questions on the SAT may require you to know certain properties of lines on the xy-plane.
Let’s talk about them.
Points on a Line
You may be asked if a point is on a line or on the graph of any other equation. Just plug the coordinates of
the point into the equation of the line to determine if that point makes the equation a true statement.
3.In the xy-plane, which of the following ordered pairs is a point on the line y = 2x − 6 ?
A) (6, 7)
B) (7, 7)