A line with a slope of –5 passes through the point (–4,–8). What is its equation in point-slope form?

1 answer

To write the equation of a line in point-slope form, you can use the formula:

\[ y - y_1 = m(x - x_1) \]

where \( m \) is the slope and \( (x_1, y_1) \) is a point on the line.

Given:

  • Slope \( m = -5 \)
  • Point \( (x_1, y_1) = (-4, -8) \)

Substituting these values into the formula:

\[ y - (-8) = -5(x - (-4)) \]

This simplifies to:

\[ y + 8 = -5(x + 4) \]

So, the equation of the line in point-slope form is:

\[ y + 8 = -5(x + 4) \]