TutorChase logo
Login

IBDP Maths AA SL Predicted Paper 2 set 1

Questions

Question 1

The diagram shows the curve y=2x34x2+1y=\dfrac{2x-3}{4x^{2}+1}. Point P lies on the curve where the tangent has gradient 22.

Pasted image
Part a
[3]

Find the coordinates of P, given that xP>0x_{P}>0.

Part b
[2]

Find the equation of the tangent at P. Give your answer correct to 33 significant figures.

Part c
[1]

State the horizontal asymptote of the curve.

[6]

Question 2

The diagram shows sector AÔB of a circle with centre O, radius (3x+1) cm(3x+1)\text{ cm} and angle AÔB =2=2 radians.

Pasted image
Part a
[3]

Given that the area of the sector is less than (44x7) cm2(44x-7)\text{ cm}^{2}, find the set of possible values of xx.

Part b
[2]

For x=1x=1, find the length of arc AB.

[5]

Question 3

The table shows paired observations (x,y)(x,y) from a calibration experiment.

xx: 22, 44, 55, 77, 99, 1212, 1313, 1515
yy: 55, 77, 99, 1010, 1313, 1515, 1616, 1919

Part a
[3]

Using technology, find xˉ\bar{x}, yˉ\bar{y} and the population standard deviations of xx and yy, each correct to 33 significant figures.

Part b
[3]

Using technology, find the Pearson correlation coefficient rr and the regression line of yy on xx.

Part c
[1]

Interpret the slope of your regression line in this context.

[7]

Question 4

Consider the equation e2x=1+x2e^{2x}=1+x^{2} for 0x10\le x\le 1.

Part a
[3]

Use technology to find the solution in the interval [0,1][0,1], correct to 33 significant figures.

Part b
[4]

Let f(x)=e2x1x2f(x)=e^{2x}-1-x^{2}. Show that f(x)>0f'(x)>0 on [0,1][0,1] and hence justify that the solution is unique.

[7]

Question 5

Consider the quadratic equation 3kx2+2x+k=03kx^{2}+2x+k=0, where kk is a real number.

Part a
[5]

In terms of kk, determine the discriminant and hence the values of kk for which the equation has

(i) two distinct real roots;
(ii) a repeated real root;
(iii) no real roots.

Part b
[2]

For k=1k=1, solve the equation.

[7]

Question 6

The curves y=2xy=2x and y=x2y=x^{2} intersect at x=0x=0 and x=2x=2.

Part a
[5]

Find the exact area of the region enclosed by the two curves.

Part b
[3]

Find the equation of the tangent to y=x2y=x^{2} that is parallel to the line y=2xy=2x.

[8]

Question 7

The diagram shows the curve 5x2xy+2y2k=05x-2xy+2y^{2}-k=0, where kk is a positive integer. At points P and Q on the curve, the tangents are parallel to the y-axis.

Pasted image
Part a
[4]

Express xx as a function of yy and hence show that the y-coordinates of P and Q satisfy 2y210y+k=02y^{2}-10y+k=0.

Part b
[2]

Deduce that, at P and Q, x=2yx=2y.

Part c
[3]

Hence find all positive integers kk for which there are two distinct points where the tangent is parallel to the y-axis, and give the two y-values in terms of kk.

Part d
[4]

For k=9k=9, find the coordinates of P and Q, and the equations of the vertical tangents at these points.

Part e
[1]

For k=9k=9, write down the equation of the normal at P.

[14]

Question 8

Consider the function f(x)=ex(x+2)f(x)=e^{-x}(x+2) for x0x\ge 0.

Part a
[3]

Show that ff has a unique maximum on [0,)[0,\infty).

Part b
[5]

Find the x-coordinate of the maximum and the maximum value.

Part c
[5]

Solve f(x)=12f(x)=\dfrac{1}{2} for x0x\ge 0, correct to 33 significant figures, using technology.

[13]

Question 9

Let g(x)=2cos(3(xπ6))+1g(x)=2\cos\left(3\left(x-\dfrac{\pi}{6}\right)\right)+1 for real xx.

Part a
[3]

State the amplitude, midline, period and phase shift of gg.

Part b
[5]

Solve g(x)=1g(x)=1 for 0x2π0\le x\le 2\pi.

Part c
[5]

Solve 2sin2x=3cosx2\sin^{2}x=3\cos x for 0x2π0\le x\le 2\pi.

[13]

Hire a tutor

Please fill out the form and we'll find a tutor for you.

1/2
Your details
Alternatively contact us via
WhatsApp, Phone Call, or Email