Grade 8 Math · Expressions & Equations
Calculate slope from a table
Find the exact constant rate of change in the table.
Practice more with MathNivoAndroid app coming soonExplore the idea here, then continue practicing in the Android app when available.
What you’ll learn
Find the exact constant rate of change in the table.
Key idea
Rate of change is change in y divided by change in x.
Worked example
Find the exact constant rate of change in the table.
x/y table
Given values| x | y |
|---|
| -2 | -6 |
| 1 | 3 |
| 4 | 12 |
| 7 | 21 |
- 3
Answer: 3
Quick Check
Analyze the proposed student response. Choose Correct or Incorrect.
x/y table
Student response: -2
Given values| x | y |
|---|
| -2 | -2 |
| 0 | -6 |
| 2 | -10 |
| 4 | -14 |