Last updated on Sep 20, 2026

Equation of a Straight Line (Edexcel A-Level Mathematics): Quizzes

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Parallel & Perpendicular Gradients

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If two lines are perpendicular, what is the product of their gradients?

$-1$

What is true about the gradients of parallel lines?

They are equal

Find the gradient of the line through $(2, 5)$ and $(6, 13)$ .

$2$

A line is parallel to $y = 3x + 2$ . What is its gradient?

$3$

What is the gradient of a line perpendicular to one with gradient $2$ ?

$-\frac{1}{2}$

Find the gradient of the line $2y - 4x = 8$ .

$2$

Are $y = \frac{1}{2}x + 3$ and $y = -2x - 4$ perpendicular?

Yes

If a line has gradient $-\frac{6}{5}$ , what is the gradient of a perpendicular line?

$\frac{5}{6}$

What point does a perpendicular bisector of a line segment pass through?

The midpoint

Find the gradient of a line perpendicular to $x - 3y + 15 = 0$ .

$-3$

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