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Rate of Change from a Table · Easy Worksheet 2

Rate of Change from a Table — Easy Worksheet 2

Grade 8 · Whoobee    Name: ____________________   Date: __________

Find the rate of change shown in each table. A rate of change is negative when y decreases. Write fractions in lowest terms (for example 3/2).

How to solve

Rate of change = (change in y) ÷ (change in x). Pick two rows of the table, subtract the y-values and subtract the x-values in the same order, then divide. If y goes down as x goes up, the rate of change is negative. When x goes up by 1 each row, the rate is simply how much y changes from one row to the next.

Example

What is the rate of change of the function in the table?

xy
320
423
526
629
732

Answer: 3

right so far
1 What is the rate of change of the function in the table?
xy
29
311
413
515
617
2 What is the rate of change of the function in the table?
xy
310
412
514
616
718
3 What is the rate of change of the function in the table?
xy
417
521
625
729
4 What is the rate of change of the function in the table?
xy
117
222
327
432
5 What is the rate of change of the function in the table?
xy
49
511
613
715
6 What is the rate of change of the function in the table?
xy
113
214
315
416
517
7 What is the rate of change of the function in the table?
xy
111
216
321
426
531
8 What is the rate of change of the function in the table?
xy
211
316
421
526

/ right