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The line x + 3y + 2 = 0 passes through the point (4, k); then the value of k is ______.

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Question

The line x + 3y + 2 = 0 passes through the point (4, k); then the value of k is ______.

Options

  • 2

  • 1

  • −1

  • −2

MCQ
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Solution

The line x + 3y + 2 = 0 passes through the point (4, k); then the value of k is −2.

Explanation:

Since the line x + 3y + 2 = 0 passes through the point (4, k), we substitute x = 4 and y = k:

4 + 3k + 2 = 0

3k + 6 = 0

3k = −6

k = −2

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Chapter 24: Graphical Solution [Solution of Simultaneous Linear Equations, Graphically] - TEST YOURSELF [Page 366]

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Selina Concise Mathematics [English] Class 9 ICSE
Chapter 24 Graphical Solution [Solution of Simultaneous Linear Equations, Graphically]
TEST YOURSELF | Q 1. (b) | Page 366
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