Understanding Arithmetic Sequences

What is the common difference in the sequence 3, 7, 11, 15?

• 3

• 5

• 6

• 4

Calculate the 10th term of the arithmetic sequence where the first term is 5 and the common difference is 2.

• 23

• 25

• 19

• 21

What is the sum of the first 20 terms of the arithmetic sequence 4, 8, 12, ...?

• 720

• 1000

• 840

• 600

Graph the arithmetic sequence defined by the first term 2 and a common difference of 3. What does the graph look like?

• The graph is a curve with a peak at (1, 5).

• The graph is a horizontal line at y = 2.

• The graph is a straight line with a slope of 1, starting at (0, 2).

• The graph is a straight line with a slope of 3, starting at (0, 2).

A car travels 60 km in the first hour and increases its speed by 10 km/h every hour. How far will it travel in the 5th hour?

• 120 km

• 90 km

• 100 km

• 80 km

ما العامل المشترك الأكبر؟

• 667

• 88

• 98