Math Problem Statement

Write the equation of a line that is parallel to y = 3x - 2 and passes through the point (3, 2).

Solution

Let's solve the problem in detail.

We need to write the equation of a line that is parallel to y=3x2y = 3x - 2 and passes through the point (3,2)(3, 2).

Step 1: Determine the slope

Since the line is parallel to y=3x2y = 3x - 2, it has the same slope. The slope-intercept form of a line is:

y=mx+by = mx + b

where mm is the slope. From the given equation y=3x2y = 3x - 2, the slope is m=3m = 3.

Step 2: Use Point-Slope Form

The point-slope form of a line is:

yy1=m(xx1)y - y_1 = m(x - x_1)

Here, (x1,y1)=(3,2)(x_1, y_1) = (3, 2) is the point the line passes through, and the slope m=3m = 3. Plugging in these values:

y2=3(x3)y - 2 = 3(x - 3)

This is the point-slope form of the equation.

Step 3: Convert to Slope-Intercept Form

Now, let's simplify the point-slope form into slope-intercept form y=mx+by = mx + b.

y2=3(x3)y - 2 = 3(x - 3) y2=3x9y - 2 = 3x - 9 y=3x9+2y = 3x - 9 + 2 y=3x7y = 3x - 7

This is the equation of the line in slope-intercept form.

Final Answer:

  1. Point-Slope Form: y2=3(x3)y - 2 = 3(x - 3)
  2. Slope-Intercept Form: y=3x7y = 3x - 7

Would you like any additional details or clarifications?


Here are 5 related questions you might consider:

  1. How do we find the slope of a line given two points?
  2. What is the general process for converting from point-slope form to slope-intercept form?
  3. How do we find the equation of a line that is perpendicular to another line?
  4. What happens if two lines have the same slope but different intercepts?
  5. How do we determine the distance between a point and a line?

Tip: Remember, parallel lines always have the same slope but different y-intercepts!

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Point-Slope Form
Slope-Intercept Form

Formulas

Point-slope form: y - y1 = m(x - x1)
Slope-intercept form: y = mx + b

Theorems

Parallel lines have the same slope

Suitable Grade Level

Grades 7-9