Math Problem Statement

What are the x and y intercepts of the equation 6x - 2y = -18? Select one: (a) x-intercept = (0, -3), y-intercept = (-9, 0) (b) x-intercept = (-3, 0), y-intercept = (0, 9) (c) x-intercept = (3, 0), y-intercept = (0, -9) (d) x-intercept = (9, 0), y-intercept = (0, -3)

Solution

To determine the xx- and yy-intercepts of the equation 6x2y=186x - 2y = -18:

Step 1: Find the xx-intercept

The xx-intercept occurs when y=0y = 0. Substitute y=0y = 0 into the equation: 6x2(0)=186x - 2(0) = -18 6x=186x = -18 x=3x = -3 Thus, the xx-intercept is (3,0)(-3, 0).


Step 2: Find the yy-intercept

The yy-intercept occurs when x=0x = 0. Substitute x=0x = 0 into the equation: 6(0)2y=186(0) - 2y = -18 2y=18-2y = -18 y=9y = 9 Thus, the yy-intercept is (0,9)(0, 9).


Final Answer:

The xx- and yy-intercepts are: \text{x-intercept: } (-3, 0), \text{y-intercept: } (0, 9) From the choices given in the image, the correct answer is (b).

Would you like further clarification or a detailed breakdown of the steps? Here are five related questions to expand your understanding:

  1. How do intercepts help in graphing linear equations?
  2. Can you explain how to rewrite an equation in slope-intercept form?
  3. How would you find intercepts for a quadratic equation?
  4. What is the significance of the intercepts in real-world problems?
  5. How do intercepts relate to parallel and perpendicular lines?

Tip: Always double-check by substituting intercept values back into the equation to verify their correctness!

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Intercepts

Formulas

Substitute y = 0 to find x-intercept
Substitute x = 0 to find y-intercept

Theorems

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Suitable Grade Level

Grades 7-10