Questions: A line passes through the point (-4,8) and has a slope of -3/2. Write an equation in slope-intercept form for this line.

A line passes through the point (-4,8) and has a slope of -3/2. Write an equation in slope-intercept form for this line.
Transcript text: A line passes through the point $(-4,8)$ and has a slope of $-\frac{3}{2}$. Write an equation in slope-intercept form for this line.
failed

Solution

failed
failed

Solution Steps

Step 1: Start with the point-slope form of the equation

The point-slope form is $y - y_1 = m(x - x_1)$, where $(x_1, y_1) = (-4, 8)$ and $m = -1.5$.

Step 2: Rearrange the equation to slope-intercept form

Rearranging the equation to solve for $y$, we get $y = mx + b$. To find $b$, we substitute the given values into the equation.

Step 3: Calculate the y-intercept ($b$)

Substituting $x_1 = -4$, $y_1 = 8$, and $m = -1.5$ into the equation, we get $b = y_1 - m \cdot x_1 = 8 + 1.5 \cdot -4 = 2$.

Final Answer:

The equation of the line in slope-intercept form is $y = -1.5x + 2$.

Was this solution helpful?
failed
Unhelpful
failed
Helpful