Bowman Washington
11/01/2023 · Middle School
Use point-slope form to write the equation of a line that passes through the point \( (-4,-20) \) with slope \( -\frac{3}{4} \).
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Step-by-step Solution
To write the equation of a line in point-slope form, we use the formula:
\[
y - y_1 = m(x - x_1)
\]
where \( (x_1, y_1) \) is a point on the line and \( m \) is the slope.
Given the point \( (-4, -20) \) and the slope \( m = -\frac{3}{4} \), we can substitute these values into the formula:
- \( x_1 = -4 \)
- \( y_1 = -20 \)
- \( m = -\frac{3}{4} \)
Substituting these values into the point-slope form gives:
\[
y - (-20) = -\frac{3}{4}(x - (-4))
\]
This simplifies to:
\[
y + 20 = -\frac{3}{4}(x + 4)
\]
Thus, the equation of the line in point-slope form is:
\[
y + 20 = -\frac{3}{4}(x + 4)
\]
Quick Answer
The equation of the line in point-slope form is \( y + 20 = -\frac{3}{4}(x + 4) \).
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