m = - 1
passes through (-2, 1)
if y = 1 ; x = -2
y = mx + b
1 = -1(-2) + b
b = - 1
y = - x - 1
The equation of the line is y = - x - 1
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Answers & Comments
Problem:
What is the equation of the line that passes through (-2,1) with the slope -1
Solution:
m = - 1
passes through (-2, 1)
if y = 1 ; x = -2
y = mx + b
1 = -1(-2) + b
b = - 1
y = mx + b
y = - x - 1
Answer:
The equation of the line is y = - x - 1
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