Worked examples
Two examples
Example 1
A line passes through the marked points (1, 2) and (3, 6). What is its slope?
- From the left point to the right one, the line goes up 4 (the rise) and right 2 (the run).
- Slope = rise ÷ run = 4 ÷ 2.
Answer: 2
Example 2
A line passes through the marked points (−2, 3) and (1, 1). What is its slope?
- From left to right it goes down 2 (rise −2) and right 3.
- Slope = −2 ÷ 3.
Answer: −23
Where this is taught: Lines on the Grid, “Slope from a graph”
The drill
Ten problems
This drill also has challenge problems. They use the same skill, set up the way the GED test sometimes sets up a problem, so that it looks new at first.
How many:
Type each slope. A fraction like -2/3 is fine. Then press Check my answers at the bottom.Write each answer on the line. The answer key, with the reasoning, is on the last page.