Finding a curve from its gradient and a point
Difficulty: ★★☆A curve has gradient function \(\dfrac{dy}{dx}=3x^2-6x+2\) and passes through the point \((-2,-10)\).
Which equation could be the curve?
Finding an equation from a squared gradient function
Difficulty: ★★☆A curve has gradient function \(\dfrac{dy}{dx}=(1-2x)^2\) and passes through the point \((1,8)\).
Which equation is correct?
Finding a curve from a product gradient
Difficulty: ★★★A curve has gradient function \(\dfrac{dy}{dx}=x(2x+5)\) and passes through the point \((5,-1)\).
Which equation is correct?
Finding a curve involving roots
Difficulty: ★★★A curve has gradient function \(\dfrac{dy}{dx}=\sqrt{x}(\sqrt{x}-3)\) and passes through the point \((9,12)\).
Which equation is correct?
Finding a curve from a simplified quotient gradient
Difficulty: ★★☆A curve has gradient function \(\dfrac{dy}{dx}=\dfrac{9x^3-3x}{x}\) and passes through the point \((-5,4)\).
Which equation is correct?
Finding a curve from a product of brackets
Difficulty: ★★★A curve has gradient function \(\dfrac{dy}{dx}=(3x-1)(5x+2)\) and passes through the point \((-4,-6)\).
Which equation is correct?
Finding a curve from a gradient with fractional powers
Difficulty: ★★★A curve has gradient function \(\dfrac{dy}{dx}=\dfrac{5}{\sqrt{x}}-10\sqrt{x^3}\) and passes through the point \((1,-6)\).
Which equation is correct?
Finding a curve from its gradient function and a point
Difficulty: ★★★A curve passes through the point \((7,10)\) and its gradient function is \(\dfrac{6}{x^3}+2\).
Which equation is correct?
Finding an equation from f prime and a point
Difficulty: ★★★The curve \(C\) has equation \(y=f(x)\). It passes through the point \((-2,-1)\) and \(f\,\!'(x)=x(3-x)\).
Which equation is correct?
Finding a curve from a second derivative
Difficulty: ★★★A curve is such that \(\dfrac{d^2y}{dx^2}=-8x\). The curve has a maximum point when \(x=1\), and the point \((2,-1)\) lies on the curve.
Which equation is correct?
Finding f of x from its derivative and a function value
Difficulty: ★★★Given that \(f\,\!'(x)=8x^3-4+3x^{-1/2}\) and \(f(4)=3\), which expression is correct for \(f(x)\)?
Finding y from a second derivative and initial conditions
Difficulty: ★★★Given that \(\dfrac{d^2y}{dx^2}=-3x+2\), and when \(x=-1\), \(\dfrac{dy}{dx}=5\) and \(y=0\), which equation is correct?
Finding the equation of a curve from its gradient
Difficulty: ★★☆A curve passes through the point \((3,10)\) and its gradient at any point is given by \(\dfrac{dy}{dx}=6x^2-4x+3\).
Which equation is correct?
Recover a curve from its gradient: check 1
Difficulty: ★★☆Info
Maths4U Original · Short practice
A curve has \(\displaystyle \frac{dy}{dx}= 4x- 3\) and passes through \((2,5)\). Write \(y=2x^2-3x+C\) and find \(C\).Enter one number or fraction. Round decimals to at least six decimal places when needed.
Recover a curve from its gradient: check 2
Difficulty: ★★☆Info
Maths4U Original · Short practice
A curve has \(\displaystyle \frac{dy}{dx}= 3x^{2}\), \(y(1)=4\). Find \(y(2)\).Enter one number or fraction. Round decimals to at least six decimal places when needed.
Recover a curve from its gradient: check 3
Difficulty: ★★☆Info
Maths4U Original · Short practice
Given \(y''=6x\) and \(y'(0)=2\), find \(y'(1)\).Enter one number or fraction. Round decimals to at least six decimal places when needed.
Recover a curve from its gradient: check 4
Difficulty: ★★☆Info
Maths4U Original · Short practice
Why must \(+C\) be included in an indefinite integral?Choose one answer.
Recover a curve from its gradient: review variant 1
Difficulty: ★★☆Info
Maths4U Original · Short practice
A curve has \(\displaystyle \frac{dy}{dx}= 6x- 2\) and passes through (1,-3). Write \(y=3x^2-2x+C\). Find C.Enter one number or fraction. Round decimals to at least six decimal places when needed.
Recover a curve from its gradient: review variant 2
Difficulty: ★★☆Info
Maths4U Original · Short practice
A curve has \(\displaystyle \frac{dy}{dx}= 4x\) and \(\displaystyle y(1)=3\). Find y(3).Enter one number or fraction. Round decimals to at least six decimal places when needed.
Recover a curve from its gradient: review variant 3
Difficulty: ★★☆Info
Maths4U Original · Short practice
Given \(y''=8x\) and \(y'(0)=-3\), find \(y'(2)\).Enter one number or fraction. Round decimals to at least six decimal places when needed.
Recover a curve from its gradient: review variant 4
Difficulty: ★★☆Info
Maths4U Original · Short practice
A curve has derivative 2x and passes through (0,7). Find y(2).Enter one number or fraction. Round decimals to at least six decimal places when needed.