Find the slope of a graph
key notes:
Slope = change in y / change in x
Learn with an example
Look at this graph:
What is the slope?
Simplify your answer and write it as a proper fraction, improper fraction, or integer.
Find any two points on the line.
Two points on the line are (10, 20) and (30, 30). Put those points into the slope formula.
slope = change in y / change in x
= 30-20 / 30-10 [ plugin (10, 30) and (30, 30) ]
= 10/20 (subtract)
= 1/2 (simplify)
The slope is 1/2.
Look at this graph:
What is the slope?
Simplify your answer and write it as a proper fraction, improper fraction, or integer.
Find any two points on the line.
Two points on the line are (1, 5) and (3, 6). Put those points into the slope formula.
slope = change in y / change in x
= 6 – 5 / 3 – 1 Plugin (1, 5) and (3, 6)
= 1/2 Subtract
The slope is 1/2.
Let’s Practice!
