Which is an equation, in point-slope form, of a line that passes through the points (2,9) and (4,5)?
1 answer:
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1) graphs y = -9x + 12 and y = 1/3x - 12 are not coincident.
2) The graphs are not parallel, because the angular coefficients are not equal
3) The condition of perpendicularity:
, where
- not perpendicular