Topic Details (Notes format)

How to Find the Slope of a Line

Subject: Mathematics

Book: Maths Mastery

Slope measures the steepness of a line, calculated by m = (y₂ – y₁) ÷ (x₂ – x₁). If your points are (3, 2) and (7, 10), then slope m = (10 – 2) ÷ (7 – 3) = 8 ÷ 4 = 2. A positive slope indicates an upward trend, negative slope a downward trend, zero slope a horizontal line, and undefined slope a vertical line. Slope is core to linear equations, signifying a rate of change—like speed in distance-time graphs or cost per unit in economics. Gaining proficiency in slope calculations strengthens your understanding of linear relationships across diverse contexts.

Practice Questions

What is the sum of all even numbers between 1 and 100?

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If the sum of the angles of a polygon is 1080°, how many sides does the polygon have?

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If the radius of a circle is doubled, what happens to its area?

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If the sum of three consecutive integers is 72, what are the integers?

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The sides of a triangle are 13 cm, 14 cm, and 15 cm. What is its area?

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A number is increased by 20% and then decreased by 10%. What is the net change?

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The perimeter of a rectangle is 50 cm, and its length is 15 cm. What is its width?

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How many diagonals does a pentagon have?

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If a:b = 5:7 and b:c = 6:11, what is a:c?

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If a = 2 and b = 3, what is the value of (a^2 + b^2)?

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