Math Problem Statement

Determine the linear equation for each of the following situations. Write your answer in slope-intercept form. 1. Give the equation of the line passing through the point (1, -10) that is parallel to y = -3x + 2. 2. Give the equation of the line passing through the point (4, 1) that is parallel to y = -x - 5. 3. Give the equation of the line passing through the point (15, 1) that is perpendicular to y = -3x. 4. Give the equation of the line passing through the point (12, -7) that is perpendicular to y = 6/7x + 8. 5. Give the equation of the line passing through the point (-6, -3) that is parallel to y = 6.

Solution

The image you uploaded contains several questions related to finding equations of lines based on parallel and perpendicular relationships. I will solve each problem step by step and provide the equations in slope-intercept form.

1. Equation passing through (1, -10) parallel to y=3x+2y = -3x + 2:

The given line has a slope of -3 (from the equation y=mx+by = mx + b, where mm is the slope). Since parallel lines have the same slope, the slope of the new line is also -3.

To find the equation:

  • The slope m=3m = -3
  • The point is (1,10)(1, -10)

Use the point-slope form of the equation:
yy1=m(xx1)y - y_1 = m(x - x_1)

Substitute: y(10)=3(x1)y - (-10) = -3(x - 1)

Simplify: y+10=3(x1)y + 10 = -3(x - 1)
y+10=3x+3y + 10 = -3x + 3
y=3x7y = -3x - 7

Equation: y=3x7y = -3x - 7


2. Equation passing through (4, 1) parallel to y=x5y = -x - 5:

The slope of the given line is -1 (since the equation is y=x5y = -x - 5, which has slope -1). The new line will also have a slope of -1 because they are parallel.

To find the equation:

  • The slope m=1m = -1
  • The point is (4,1)(4, 1)

Use point-slope form:
y1=1(x4)y - 1 = -1(x - 4)

Simplify: y1=x+4y - 1 = -x + 4
y=x+5y = -x + 5

Equation: y=x+5y = -x + 5


3. Equation passing through (15, 1) perpendicular to y=3xy = -3x:

The slope of the given line is -3. For perpendicular lines, the slopes are negative reciprocals. So, the slope of the perpendicular line will be 13\frac{1}{3}.

To find the equation:

  • The slope m=13m = \frac{1}{3}
  • The point is (15,1)(15, 1)

Use point-slope form:
y1=13(x15)y - 1 = \frac{1}{3}(x - 15)

Simplify: y1=13x5y - 1 = \frac{1}{3}x - 5
y=13x4y = \frac{1}{3}x - 4

Equation: y=13x4y = \frac{1}{3}x - 4


4. Equation passing through (12, -7) perpendicular to y=67x+8y = \frac{6}{7}x + 8:

The slope of the given line is 67\frac{6}{7}. For perpendicular lines, the slope will be the negative reciprocal, which is 76-\frac{7}{6}.

To find the equation:

  • The slope m=76m = -\frac{7}{6}
  • The point is (12,7)(12, -7)

Use point-slope form:
y+7=76(x12)y + 7 = -\frac{7}{6}(x - 12)

Simplify: y+7=76x+14y + 7 = -\frac{7}{6}x + 14
y=76x+7y = -\frac{7}{6}x + 7

Equation: y=76x+7y = -\frac{7}{6}x + 7


5. Equation passing through (-6, -3) parallel to y=6y = 6:

The line y=6y = 6 is a horizontal line with a slope of 0. A parallel line will also have a slope of 0.

To find the equation:

  • The slope m=0m = 0
  • The point is (6,3)(-6, -3)

The equation of a horizontal line is just y=y = the y-coordinate of the point.
So, the equation is:
Equation: y=3y = -3


These are the solutions for the given problems. Would you like any further explanation on any of these steps?

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Slope-Intercept Form
Parallel Lines
Perpendicular Lines

Formulas

y = mx + b
Point-Slope Form: y - y_1 = m(x - x_1)
Slope of perpendicular lines is negative reciprocal

Theorems

Parallel lines have the same slope
Perpendicular lines have slopes that are negative reciprocals

Suitable Grade Level

Grades 7-9