PractiseQuestion bank
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14 questions
SA-9709-P2-DF-Q031 markL1 FoundationCalculatorImplicit
Differentiating y3 with respect to x gives Salam Academy Original Practice · Proposed mark scheme
SA-9709-P3-D33-0011 markL1 FoundationCalculatorImplicit
Differentiating xy with respect to x gives Salam Academy Original Practice · Proposed mark scheme
SA-9709-P3-D33-G012 marksL1 FoundationCalculatorImplicit
Find the gradient of the circle x2+y2=25 at the point (3,4). Salam Academy Original Practice · Proposed mark scheme
SA-9709-P2-DF-0104 marksL2 StandardCalculatorImplicit
The curve x2+y2+2x−4y=20 passes through (2,6). Find the gradient of the curve at this point. Salam Academy Original Practice · Proposed mark scheme
SA-9709-P3-D33-0022 marksL2 StandardCalculatorImplicit
Find the gradient of the curve x2+2y2=9 at the point (1,2). Salam Academy Original Practice · Proposed mark scheme
SA-9709-P3-D33-0032 marksL2 StandardCalculatorImplicit
The curve xey=2 passes through (2,0). Find the gradient of the curve at this point. Salam Academy Original Practice · Proposed mark scheme
SA-9709-P3-DF-0084 marksL2 StandardCalculatorImplicit
The curve x2+y2−4x+6y=12 passes through (5,1). Find the gradient of the curve at this point. Salam Academy Original Practice · Proposed mark scheme
SA-9709-P2-DF-0114 marksL3 ExamCalculatorImplicit
Find the gradient of the curve x3+xy+y3=11 at the point (1,2). Salam Academy Original Practice · Proposed mark scheme
SA-9709-P2-DF-0125 marksL3 ExamCalculatorTangents
The curve x2y+y2=6 passes through (1,2). (i) Find dxdy at this point. (ii) Find the equation of the tangent at this point, giving y in terms of x. Salam Academy Original Practice · Proposed mark scheme
SA-9709-P3-D33-0044 marksL3 ExamCalculatorTangents
Find the equation of the tangent to x2+xy+y2=7 at the point (1,2), in the form y=mx+c. Salam Academy Original Practice · Proposed mark scheme
SA-9709-P3-DF-0105 marksL3 ExamCalculatorTangents
Find the equation of the tangent to the curve x2+3xy+y2=11 at the point (1,2), in the form y=mx+c. Salam Academy Original Practice · Proposed mark scheme
SA-9709-P2-DF-0136 marksL4 ChallengingCalculatorSpecial points
The curve x2+xy+y2=12 has two points where the tangent is parallel to the x-axis. (i) Show that at these points y=−2x, and find their x-coordinates. (ii) Find the y-coordinate of the point with positive x. Salam Academy Original Practice · Proposed mark scheme
SA-9709-P3-D33-0053 marksL4 ChallengingCalculatorImplicit
By taking logarithms and differentiating implicitly, differentiate y=2x. Salam Academy Original Practice · Proposed mark scheme
SA-9709-P3-DF-0176 marksL5 ExtensionCalculatorSpecial points
Find the coordinates of the points on the curve x2−xy+y2=3 at which the tangent is parallel to the x-axis. Salam Academy Original Practice · Proposed mark scheme