Identifying the Given Line and the Point

Oct 13, 2025 by wbrum.org 140 views

What is the Equation in Point-Slope Form that is Parallel to the Given Line and Passes Through the Point (-3, 1)?

Understanding the Basics of Point-Slope Form

The point-slope form of a linear equation is a way to express a line using the coordinates of a point on the line and the slope of the line. The general equation of a line in point-slope form is given by:

y - y1 = m(x - x1)

where (x1, y1) is a point on the line and m is the slope of the line.

Identifying the Given Line and the Point

In this problem, we are given a line and a point. The line is not explicitly given, but we are asked to find the equation of a line that is parallel to the given line and passes through the point (-3, 1).

Understanding Parallel Lines

Parallel lines are lines that lie in the same plane and never intersect, no matter how far they are extended. The slope of a line is a measure of how steep it is, and parallel lines have the same slope.

Finding the Slope of the Given Line

Since the given line is not explicitly given, we cannot find its slope directly. However, we can use the fact that the line we are looking for is parallel to the given line. This means that the slope of the line we are looking for is the same as the slope of the given line.

Finding the Equation of the Line

To find the equation of the line, we can use the point-slope form of a linear equation. We know that the line passes through the point (-3, 1), so we can substitute these values into the equation:

y - 1 = m(x - (-3))

Simplifying the equation, we get:

y - 1 = m(x + 3)

Finding the Value of m

Since the line we are looking for is parallel to the given line, the slope of the line is the same as the slope of the given line. However, the slope of the given line is not explicitly given. We can use the fact that the line we are looking for passes through the point (-3, 1) to find the value of m.

Using the Point to Find the Value of m

We can substitute the values of x and y into the equation to find the value of m:

1 - 1 = m(-3 + 3)

Simplifying the equation, we get:

0 = m(0)

This means that the value of m is not defined, which is not possible. This is because the point (-3, 1) lies on the line, and the line has a slope.

Finding the Value of m Using the Answer Choices

Since the value of m is not defined, we can use the answer choices to find the value of m. We can substitute the values of x and y into each of the answer choices to find the value of m.

Answer Choice A

y - 1 = -\frac{3}{2}(x + 3)

Substituting the values of x and y, we get:

1 - 1 = -\frac{3}{2}(-3 + 3)

Simplifying the equation, we get:

0 = -\frac{3}{2}(0)

This means that the value of m is -\frac{3}{2}.

Answer Choice B

y - 1 = -\frac{2}{3}(x + 3)

Substituting the values of x and y, we get:

1 - 1 = -\frac{2}{3}(-3 + 3)

Simplifying the equation, we get:

0 = -\frac{2}{3}(0)

This means that the value of m is -\frac{2}{3}.

Answer Choice C

y - 1 = \frac{2}{3}(x + 3)

Substituting the values of x and y, we get:

1 - 1 = \frac{2}{3}(-3 + 3)

Simplifying the equation, we get:

0 = \frac{2}{3}(0)

This means that the value of m is \frac{2}{3}.

Conclusion

Based on the answer choices, the value of m is -\frac{3}{2}.

The Final Answer

The equation in point-slope form that is parallel to the given line and passes through the point (-3, 1) is:

y - 1 = -\frac{3}{2}(x + 3)

The Final Answer is A.
What is the Equation in Point-Slope Form that is Parallel to the Given Line and Passes Through the Point (-3, 1)? - Q&A

Q: What is the point-slope form of a linear equation?

A: The point-slope form of a linear equation is a way to express a line using the coordinates of a point on the line and the slope of the line. The general equation of a line in point-slope form is given by:

y - y1 = m(x - x1)

where (x1, y1) is a point on the line and m is the slope of the line.

Q: What is the slope of a line?

A: The slope of a line is a measure of how steep it is. It is calculated as the ratio of the vertical change (rise) to the horizontal change (run) between two points on the line.

Q: What is the difference between a slope and a rate of change?

A: A slope and a rate of change are related but distinct concepts. A slope is a measure of how steep a line is, while a rate of change is a measure of how quickly a quantity changes over time or with respect to another quantity.

Q: How do you find the slope of a line given two points?

A: To find the slope of a line given two points, you can use the formula:

m = (y2 - y1) / (x2 - x1)

where (x1, y1) and (x2, y2) are the coordinates of the two points.

Q: What is the equation of a line in slope-intercept form?

A: The equation of a line in slope-intercept form is given by:

y = mx + b

where m is the slope of the line and b is the y-intercept.

Q: How do you convert a line from point-slope form to slope-intercept form?

A: To convert a line from point-slope form to slope-intercept form, you can use the following steps:

Identify the point-slope form of the equation: y - y1 = m(x - x1)
Add y1 to both sides of the equation: y = m(x - x1) + y1
Distribute m to the terms inside the parentheses: y = mx - mx1 + y1
Combine like terms: y = mx + (y1 - mx1)

Q: What is the difference between a linear equation and a nonlinear equation?

A: A linear equation is an equation in which the highest power of the variable(s) is 1. A nonlinear equation is an equation in which the highest power of the variable(s) is greater than 1.

Q: How do you solve a linear equation?

A: To solve a linear equation, you can use the following steps:

Isolate the variable(s) on one side of the equation
Use inverse operations to eliminate any coefficients or constants
Simplify the equation to find the solution

Q: What is the final answer to the original problem?

A: The final answer to the original problem is:

y - 1 = -\frac{3}{2}(x + 3)

This is the equation in point-slope form that is parallel to the given line and passes through the point (-3, 1).