• Especially, when change in x is 1 unit
In the slope-intercept form, the coefficient of x term is the slope
• The slope of a line means the ratio
of the vertical change to the horizontal change between two points on the graph of a line.
slope= =(change in y)
(for every 1 unit to the right)slope= the change in y
• When a line goes up left to right it has a positive slope.
When a line goes down left to right it has a negative slope.
Finding the slope with a fraction
When the change of y for the change of 1 x-unit is a fraction, in order to find the slope:
Find two lattice points (points where two grid lines meet) on the line.
Draw a right triangle like a stair step.
From the first point to the second point, think of the vertical change and the horizontal change.