Salam Academy
Practise

Question bank

Original exam-style questions, mapped to your syllabus. Answers are checked for mathematical equivalence and every attempt updates your mastery.

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13 questions

SA-9709-P3-VE5-Q011 markL1 FoundationCalculatorFoot of perpendicular
FF is the foot of the perpendicular from AA to the line r=a+λd\mathbf{r}=\mathbf{a}+\lambda\mathbf{d}. Which equation finds FF?
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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P3-VE5-Q021 markL1 FoundationCalculatorDistances
The shortest distance from a point AA to a line is measured
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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P3-VE5-0014 marksL2 StandardCalculatorFoot of perpendicular
Find the coordinates of the foot of the perpendicular from A(5,1,0)A(5,1,0) to the line r=(12−1)+λ(212)\mathbf{r}=\begin{pmatrix}1\\2\\-1\end{pmatrix}+\lambda\begin{pmatrix}2\\1\\2\end{pmatrix}.

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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P3-VE5-0022 marksL2 StandardCalculatorDistances
The foot of the perpendicular from A(5,1,0)A(5,1,0) to a line is F(3,3,1)F(3,3,1). Find the perpendicular distance from AA to the line.

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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P3-VE5-0062 marksL2 StandardCalculatorDistances
The foot of the perpendicular from A(3,3,1)A(3,3,1) to a line is F(2,1,0)F(2,1,0). Find the exact perpendicular distance from AA to the line.

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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P3-VE5-0092 marksL2 StandardCalculatorFoot of perpendicular
The point PP on r=(111)+λ(2−12)\mathbf{r}=\begin{pmatrix}1\\1\\1\end{pmatrix}+\lambda\begin{pmatrix}2\\-1\\2\end{pmatrix} is such that OPOP is perpendicular to the line. Find λ\lambda.

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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P3-VE5-G013 marksL2 StandardCalculatorFoot of perpendicular
The line ll is r=(12−1)+λ(212)\mathbf{r}=\begin{pmatrix}1\\2\\-1\end{pmatrix}+\lambda\begin{pmatrix}2\\1\\2\end{pmatrix} and AA is (5,1,0)(5,1,0). PP is the point on ll with parameter λ\lambda. Find λ\lambda when AP→\overrightarrow{AP} is perpendicular to ll.

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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P3-VE5-0034 marksL3 ExamCalculatorDistances
Find the exact shortest distance from the origin to the line r=(111)+λ(2−12)\mathbf{r}=\begin{pmatrix}1\\1\\1\end{pmatrix}+\lambda\begin{pmatrix}2\\-1\\2\end{pmatrix}.

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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P3-VE5-0043 marksL3 ExamCalculatorFoot of perpendicular
The foot of the perpendicular from A(5,1,0)A(5,1,0) to the line ll is F(3,3,1)F(3,3,1). Find the coordinates of the reflection of AA in ll.

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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P3-VE5-0054 marksL3 ExamCalculatorFoot of perpendicular
Find the coordinates of the foot of the perpendicular from A(3,3,1)A(3,3,1) to the line r=(012)+λ(10−1)\mathbf{r}=\begin{pmatrix}0\\1\\2\end{pmatrix}+\lambda\begin{pmatrix}1\\0\\-1\end{pmatrix}.

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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P3-VE5-0073 marksL3 ExamCalculatorDistances
B(1,2,−1)B(1,2,-1) lies on the line r=(12−1)+λ(212)\mathbf{r}=\begin{pmatrix}1\\2\\-1\end{pmatrix}+\lambda\begin{pmatrix}2\\1\\2\end{pmatrix}, and AA is (5,1,0)(5,1,0). Find the length of the projection of BA→\overrightarrow{BA} onto the line, that is BA→⋅d∣d∣\dfrac{\overrightarrow{BA}\cdot\mathbf{d}}{|\mathbf{d}|}.

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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P3-VE5-0103 marksL3 ExamCalculatorDistances
BB and CC are the points on l: r=(12−1)+λ(212)l:\ \mathbf{r}=\begin{pmatrix}1\\2\\-1\end{pmatrix}+\lambda\begin{pmatrix}2\\1\\2\end{pmatrix} with λ=0\lambda=0 and λ=3\lambda=3. The perpendicular distance from A(5,1,0)A(5,1,0) to ll is 33. Find the area of triangle ABCABC.

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Salam Academy Original Practice · Proposed mark scheme
SA-9709-P3-VE5-0085 marksL4 ChallengingCalculatorDistances
The perpendicular distance from A(5,1,0)A(5,1,0) to l: r=(12−1)+λ(212)l:\ \mathbf{r}=\begin{pmatrix}1\\2\\-1\end{pmatrix}+\lambda\begin{pmatrix}2\\1\\2\end{pmatrix} is 33, and the foot is at λ=1\lambda=1. The points PP on ll with AP=5AP=5 have parameters λ1>λ2\lambda_1>\lambda_2. Find λ1\lambda_1 and λ2\lambda_2.

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Salam Academy Original Practice · Proposed mark scheme