Connect with experts and get insightful answers to your questions on IDNLearn.com. Ask your questions and receive comprehensive and trustworthy answers from our experienced community of professionals.

The given line passes through the points [tex]$(0, -3)$[/tex] and [tex]$(2, 3)$[/tex]. What is the equation of the line that is parallel to the given line and passes through the point [tex][tex]$(-1, -1)$[/tex][/tex]?

A. [tex]$y + 1 = -3(x + 1)$[/tex]

B. [tex]$y + 1 = -\frac{1}{3}(x + 1)$[/tex]

C. [tex][tex]$y + 1 = \frac{1}{3}(x + 1)$[/tex][/tex]

D. [tex]$y + 1 = 3(x + 1)$[/tex]


Sagot :

To determine the equation of the line that is parallel to the given line passing through the points [tex]\((0, -3)\)[/tex] and [tex]\((2, 3)\)[/tex] and that also passes through the point [tex]\((-1, -1)\)[/tex], we can proceed step-by-step as follows:

Step 1: Calculate the slope of the given line.
Given points:
- [tex]\((x_1, y_1) = (0, -3)\)[/tex]
- [tex]\((x_2, y_2) = (2, 3)\)[/tex]

The formula to calculate the slope ([tex]\(m\)[/tex]) between two points is:

[tex]\[ m = \frac{y_2 - y_1}{x_2 - x_1} \][/tex]

Substituting the given points:

[tex]\[ m = \frac{3 - (-3)}{2 - 0} = \frac{3 + 3}{2} = \frac{6}{2} = 3 \][/tex]

So, the slope of the given line is [tex]\(m = 3\)[/tex].

Step 2: Determine the equation of the line parallel to the given line.
A line parallel to another line will have the same slope. Therefore, the slope of our new line must also be [tex]\(3\)[/tex].

Step 3: Use the point-slope form of the equation of a line.
The point-slope form of a line's equation is:

[tex]\[ y - y_1 = m(x - x_1) \][/tex]

Here, our slope [tex]\(m = 3\)[/tex] and our point is [tex]\((-1, -1)\)[/tex].

Substituting the point [tex]\((-1, -1)\)[/tex] into the point-slope form:

[tex]\[ y - (-1) = 3(x - (-1)) \][/tex]

Simplifying, we get:

[tex]\[ y + 1 = 3(x + 1) \][/tex]

Conclusion:
The equation of the line parallel to the given line passing through the point [tex]\((-1, -1)\)[/tex] is:

[tex]\[ y + 1 = 3(x + 1) \][/tex]

Thus, among the given options, the correct one is:

[tex]\[ y + 1 = 3(x + 1) \][/tex]