Question

Which table of ordered pairs represents a proportional relationship?

need help ASAP!!

Answer 1

• Table 3 represents a proportional relationship

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Proportional relationship has the form of:

• y = kx, where k- coefficient of proportionality

The value of k should be same for any pair of coordinates:

• k = y/x

Let's test it for each table

Table 1

• k = 8/4 = 2
• k = 11/7 ≠ 2
• k = 14/10 ≠ 2
• No

Table 2

• k = 25/5 = 5
• k = 49/7 = 7 ≠ 5
• k = 81/9 = 9 ≠ 5
• No

Table 3

• k = 3/6 = 1/2
• k = 5/10 = 1/2
• k = 7/14 = 1/2
• Yes

Table 4

• k = 3/6 = 1/2
• k = 11/8 ≠ 1/2
• k = 18/13 ≠ 1/2
• No