Question

what is the pattern unit or rule? 1. 2. 3. 28, 35, 42, 49,... 4. 98, 86, 74, 62,...

Explanation:

Step1: Analyze shape pattern

The sequence is □, △, □, △, □, △, so it alternates between square and triangle.

Step2: Analyze number pattern 1

35 - 28 = 7, 42 - 35 = 7, 49 - 42 = 7, so add 7 each time.

Step3: Analyze number pattern 2

86 - 98 = -12, 74 - 86 = -12, 62 - 74 = -12, so subtract 12 each time.

Answer:

1. Alternates between square and triangle
2. Add 7 to the previous number
3. Subtract 12 from the previous number