Determine the equation of the line πΏ that passes through the point π(1; β1) and is parallel to the line whose equation is 3π₯ β 2π¦ β 6 = 0. Express the line πΏ in the form ππ₯ + 2π¦ + 5 = 0 and complete the request: β’ The value of the slope of the line L is: _______ β’ The value of π is: _______
Question
Answer:
To find the equation of a line parallel to the given line and passing through point P(1, -1), we need to determine the slope of the given line and then use it to construct the equation.
The given line has the equation 3x - 2y - 6 = 0. We can rewrite this equation in slope-intercept form (y = mx + b) by solving for y:
3x - 2y - 6 = 0
-2y = -3x + 6
y = (3/2)x - 3
From this equation, we can see that the slope of the given line is 3/2. Any line parallel to this line will have the same slope.
Now, let's use the point-slope form of a line to find the equation of the line L that passes through point P(1, -1) and has a slope of 3/2:
y - yβ = m(x - xβ)
Substituting the values into the formula:
y - (-1) = (3/2)(x - 1)
Simplifying:
y + 1 = (3/2)(x - 1)
y + 1 = (3/2)x - 3/2
To express the line L in the form ax + 2y + 5 = 0, we need to rearrange the equation:
2y + 1 = (3/2)x - 3/2
2y = (3/2)x - 3/2 - 1
2y = (3/2)x - 3/2 - 2/2
2y = (3/2)x - 5/2
4y = 3x - 5
Now, let's multiply both sides by 2 to eliminate the fraction:
4y = 3x - 5
4y - 3x + 5 = 0
Comparing this equation with the desired form ax + 2y + 5 = 0, we can see that a = -3.
Therefore, the equation of the line L is -3x + 2y + 5 = 0.
The value of the slope of the line L is 3/2, and the value of a is -3.
solved
general
11 months ago
1744