asherrice316 asherrice316

10-12-2020
Mathematics

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A line has a slope of –1 and includes the points (–7, –4) and (a, –2). What is the value of a? a =

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10-12-2020

Answer:

a = -9

Step-by-step explanation:

The formula for slope is [ y2-y1/x2-x1 ].

-2-(-4)/a-(-7) = -1

2/a+7 = -1

2 = -a - 7

9 = -a

-9 = a

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