Questions: Write the point-slope form of the line's equation satisfying the given conditions. Then use the point-slope form of the equation to write the slope-intercept form of the equation.
Slope = -2, passing through (-2, -3/2)
What is the point-slope form of the equation of the line?
(Simplify your answer. Use integers or fractions for any numbers in the equation.)
Transcript text: Write the point-slope form of the line's equation satisfying the given conditions. Then use the point-slope form of the equation to write the slope-intercept form of the equation.
\[
\text { Slope }=-2, \text { passing through }\left(-2,-\frac{3}{2}\right)
\]
What is the point-slope form of the equation of the line?
(Simplify your answer. Use integers or fractions for any numbers in the equation.)
Solution
Solution Steps
Step 1: Identify the Point-Slope Form Formula
The point-slope form of a line's equation is given by:
\[
y - y_1 = m(x - x_1)
\]
where \( m \) is the slope, and \((x_1, y_1)\) is a point on the line.
Step 2: Substitute the Given Values
We are given the slope \( m = -2 \) and the point \((-2, -\frac{3}{2})\). Substitute these values into the point-slope form:
\[
y - \left(-\frac{3}{2}\right) = -2(x - (-2))
\]
Simplify the equation:
\[
y + \frac{3}{2} = -2(x + 2)
\]
Step 3: Convert to Slope-Intercept Form
The slope-intercept form of a line's equation is \( y = mx + b \). We will convert the point-slope form to this format by solving for \( y \):
\[
y + \frac{3}{2} = -2(x + 2)
\]
Distribute the \(-2\):
\[
y + \frac{3}{2} = -2x - 4
\]
Subtract \(\frac{3}{2}\) from both sides to solve for \( y \):
\[
y = -2x - 4 - \frac{3}{2}
\]
Convert \(-4\) to a fraction with a denominator of 2: