Math Problem Statement

Which equation represents a line which is parallel to the line y, equals, minus, start fraction, 3, divided by, 5, end fraction, x, minus, 7y=−53​x−7?

Answer

Multiple Choice Answers

3, x, plus, 5, y, equals, 153x+5y=15

3, y, minus, 5, x, equals, 63y−5x=6

5, x, plus, 3, y, equals, 125x+3y=12

3, x, minus, 5, y, equals, minus, 303x−5y=−30

Solution

To solve this, we first need to understand the concept of parallel lines. Two lines are parallel if they have the same slope.

The given equation is:

y=35x7y = -\frac{3}{5}x - 7

Here, the slope is 35-\frac{3}{5}.

Now, let’s analyze each of the multiple-choice options and convert them into slope-intercept form y=mx+by = mx + b, where mm represents the slope:

1. 3x+5y=153x + 5y = 15

Solve for yy:

5y=3x+155y = -3x + 15 y=35x+3y = -\frac{3}{5}x + 3 The slope is 35-\frac{3}{5}, so this line is parallel to the given line.

2. 3y5x=63y - 5x = 6

Solve for yy:

3y=5x+63y = 5x + 6 y=53x+2y = \frac{5}{3}x + 2 The slope is 53\frac{5}{3}, so this line is not parallel.

3. 5x+3y=125x + 3y = 12

Solve for yy:

3y=5x+123y = -5x + 12 y=53x+4y = -\frac{5}{3}x + 4 The slope is 53-\frac{5}{3}, so this line is not parallel.

4. 3x5y=303x - 5y = -30

Solve for yy:

5y=3x30-5y = -3x - 30 y=35x+6y = \frac{3}{5}x + 6 The slope is 35\frac{3}{5}, so this line is not parallel.

Conclusion:

The equation that represents a line parallel to y=35x7y = -\frac{3}{5}x - 7 is Option 1: 3x+5y=153x + 5y = 15.

Would you like more details or have any other questions?

Here are 5 related questions for deeper understanding:

  1. What is the slope-intercept form of a line?
  2. How do you find the slope of a line from an equation?
  3. How do you determine if two lines are perpendicular?
  4. Can two lines have the same slope but not be parallel?
  5. How does changing the y-intercept affect the graph of a line?

Tip: When comparing lines, focus on the slope to check for parallelism or perpendicularity.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Slopes
Parallel Lines

Formulas

Slope-intercept form: y = mx + b
Parallel lines have equal slopes: m1 = m2

Theorems

Parallel Line Theorem

Suitable Grade Level

Grades 8-10