A. (5x -9) - (2x -7) b. (6x -10) -(2x-8)
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Based on the calculations, the slope of line YZ in simplest form is equal to 2.
<h3>How to determine the slope of YZ?</h3>Mathematically, the slope of a straight line can be calculated by using this formula;
Since points X, Y, and Z are collinear, we can deduce that the line passes through line Z at 6 units form the origin and 3 units for Y from the origin.
Substituting the parameters into the formula, we have;
Slope, m = 6/3
Slope, m = 2.
Read more on slope here: brainly.com/question/17601248
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