Two mark example problems I — task. Mathematics State Board, Class 10.

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1. Find the slope of the straight line \(6x + 8y + 7 = 0\).

Answer:

Slope \(=\)

\frac{i}{i}

2. Find the slope of the line which is

(i) parallel to \(3x - 7y = 11\)

(ii) perpendicular to \(2x - 3y + 8 = 0\)

Answer:

(i) Slope \(=\)

\frac{i}{i}

(ii) Slope \(=\)

\frac{i}{i}

3. Show that the straight lines \(2x + 3y - 8 = 0\) and \(4x + 6y + 18 = 0\) are parallel.

Answer:

Slope of the line \(2x + 3y - 8 = 0\) is \(m_1 =\)

\frac{i}{i}

Slope of the line \(4x + 6y + 18 = 0\) is \(m_2 =\)

\frac{i}{i}

Since \(m_1\) \(m_2\), then the given straight lines are

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2. Two mark example problems I