Question

A line passes through the point (4,-6) and he a slope -3/4. Which is the equation of the line?

Answer 1

The equation of the line is 3x + 4y + 12 = 0

Explanation:

`given \: that \: the \: line \: passes \: through \: (4 , - 6) \\ and \: has \: the \: slope \: of \: ( - 3)/(4) \\ the \: equation \: of \: the \: line \: is \\ y - y1 = m(x - x1) \\ here \: x1 = 4 \: \: \: y1 = - 6 \: \: and \: m = ( - 3)/(4) \\ on \: substituting \: the \: values \: in \: formula \\ y - ( - 6) = ( - 3)/(4) (x - 4) \\ y + 6 = ( - 3)/(4) (x - 4) \\ 4(y + 6) = - 3(x - 4) \\ 4y + 24 = - 3x + 12 \\ 3x + 4y + 24 - 12 = 0 \\ 3x + 4y + 12 = 0`

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