Math Problem Statement

Find the y-intercept and x-intercept of the line: 7x - 6y = 42

Solution

To find the x-intercept and y-intercept of the given line, we need to follow these steps. The equation provided is:

7x6y=427x - 6y = 42

1. Finding the x-intercept:

The x-intercept is the point where the line crosses the x-axis. At this point, y=0y = 0.

Substitute y=0y = 0 into the equation:

7x6(0)=427x - 6(0) = 42

Simplify:

7x=427x = 42

Now, solve for xx:

x=427=6x = \frac{42}{7} = 6

Thus, the x-intercept is (6,0)(6, 0).

2. Finding the y-intercept:

The y-intercept is the point where the line crosses the y-axis. At this point, x=0x = 0.

Substitute x=0x = 0 into the equation:

7(0)6y=427(0) - 6y = 42

Simplify:

6y=42-6y = 42

Now, solve for yy:

y=426=7y = \frac{42}{-6} = -7

Thus, the y-intercept is (0,7)(0, -7).

Conclusion:

  • x-intercept: (6,0)(6, 0)
  • y-intercept: (0,7)(0, -7)

Would you like a more detailed explanation of any part of the solution?

Here are some related questions for further exploration:

  1. How do we find the slope of the given line from the equation?
  2. Can we rewrite the equation in slope-intercept form?
  3. How do x- and y-intercepts help in graphing a line?
  4. What would change if the equation were multiplied by a constant?
  5. Can we use another method to verify the intercepts?

Tip: When finding intercepts, always remember that for the x-intercept, set y=0y = 0, and for the y-intercept, set x=0x = 0.

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Coordinate Geometry
Intercepts

Formulas

Equation of a line in standard form: Ax + By = C
X-intercept: y = 0
Y-intercept: x = 0

Theorems

Intercepts of linear equations

Suitable Grade Level

Grades 8-10