Models and Relationships

m = rise/run

y2 - y1
_____

x2 - x1

Used to find the equation of a line in a graph

Left side coordinate is always
the first (x1,y1) then, (x2,y2) on
the next coordinate

y = mx + b

y = mx + b is the slope intercept
form of the equation of a straight line.

b in y = mx + b shows the y intercept and the y intercept is the point where the line crosses the y axis

these are used to record data and
then analyze them to find a pattern
to be able to make predictions

They identify positive or negative
coordinates on the plane.

The quadrant numbers
goes counter clockwise

A ratio compares values.
It says how much of one thing
there is compared to another thing.

Used to graph linear equations

X is always first when
naming a coordinate. (x,y)

X axis is sideways (horizontal line)
Y axis is up (vertical line)

The line is constant. Its always linear.

Describes the direction and the steepness
of the line.