Question

PLS ANSWER

Which set of ordered pairs is linear?


a {(2, 1), (5, 1), (6, 1)},



b {(–3, 5), (1, 0), (2, 4)}, EndFragment,



c {(0, 0), (1, 3), (2, 7)},

Answer 1

Answer: Choice A

Step-by-step explanation:

Label the three points as

P = (2,1)

Q = (5,1)

R = (6,1)

If you were to apply the slope formula for segment PQ, then you should get m = 0. If you computed the slope of segment QR, you should also get m = 0. The same goes for segment PR.

The fact we get the same slope each time tells us we have a straight line.

A visual approach is to plot the three points. They are all on the same straight line.