through: (3,-2), slope = - 4/3

1 answer

To find the equation of a line given a point \((3, -2)\) and a slope of \(-\frac{4}{3}\), we can use the point-slope form of the equation of a line, which is given by:

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

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

Plugging in the given point and slope:

  • \(x_1 = 3\)
  • \(y_1 = -2\)
  • \(m = -\frac{4}{3}\)

Substituting these values into the point-slope form:

\[ y - (-2) = -\frac{4}{3}(x - 3) \]

This simplifies to:

\[ y + 2 = -\frac{4}{3}(x - 3) \]

Next, distribute \(-\frac{4}{3}\):

\[ y + 2 = -\frac{4}{3}x + 4 \]

Now, isolate \(y\) by subtracting 2 from both sides:

\[ y = -\frac{4}{3}x + 4 - 2 \]

This simplifies to:

\[ y = -\frac{4}{3}x + 2 \]

Thus, the equation of the line is:

\[ y = -\frac{4}{3}x + 2 \]