Find the value of "r" so that the line through (2,-3) and (-4, r) has a slope of - 1/2

Question

Mathematics

Sage Baird

31 May, 04:37

Find the value of "r" so that the line through (2,-3) and (-4, r) has a slope of - 1/2

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Alondra Matthews · Answer 1

Hi there! The formula for finding slope is y2 - y1 / x2 - x1. - 4 represents x2, and 2 represents x1. - 4 - 2 is - 6. If you think about it, 3/-6 makes - 1/2. - 3 is y1, so we will be adding, because adding a negative number actually means adding. 0 - (-3) gives us 3. There. The value of r is 0.