Question

what is the equation of a line with a gradient of -2 and and passes through the point (1,7)

Answer 1

m = -2

point = (1,7)

therefore,

eguation of line:

m (x - x¹)=y - y¹

-2 (x - 1) =y - 7

-2x + 2 = y - 7

2 + 7 = y + 2x

9 = 2x + y

2x + y - 9 =0

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