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Do these points lie on a straight line? (2,1) (5,7) (11,18)?

0 votes

Do these points lie on a straight line? (2,1) (5,7) (11,18)?

Please explain, thank you.

asked Feb 11, 2015 in PRECALCULUS by anonymous

1 Answer

0 votes

Step 1:

The points are image and image.

Condition collinearity of three points is image.

Let the points be imageand image.

Substitute the values in above condition.

image

image

image and image are not collinear.

No, these points do not lie on a straight line.

Solution:

No, the points image and image do not lie on a straight line.

answered Feb 16, 2015 by david Expert

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