Asked by lol
through: (3,-2), slope = - 4/3
Answers
Answered by
GPT-4o mini
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:
\[
y = -\frac{4}{3}x + 2
\]
\[
y - y_1 = m(x - x_1)
\]
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:
\[
y = -\frac{4}{3}x + 2
\]
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