Loading [MathJax]/jax/element/mml/optable/GeneralPunctuation.js

User interface language: English | Español

Date May Specimen paper Marks available 1 Reference code SPM.1.SL.TZ0.10
Level Standard Level Paper Paper 1 Time zone Time zone 0
Command term Find Question number 10 Adapted from N/A

Question

The following diagram shows part of the graph of f(x)=(63x)(4+x)xR. The shaded region R is bounded by the x-axis, y-axis and the graph of f.

Write down an integral for the area of region R.

[2]
a.

Find the area of region R.

[1]
b.

The three points A(0, 0) , B(3, 10) and C(a, 0) define the vertices of a triangle.

Find the value of a, the x-coordinate of C, such that the area of the triangle is equal to the area of region R.

[2]
c.

Markscheme

A20(63x)(4+x)dx      A1A1

Note: Award A1 for the limits x = 0, x  = 2. Award A1 for an integral of f(x).

[2 marks]

a.

28     A1

[1 mark]

b.

28=0.5×a×10    M1

5.6(285)      A1

[2 marks]

c.

Examiners report

It was pleasing to see that, for those candidates who made a reasonable attempt at the paper, many were able to identify the correct values on the tree diagram.

a.
[N/A]
b.
[N/A]
c.

Syllabus sections

Topic 5—Calculus » SL 5.5—Integration introduction, areas between curve and x axis
Show 85 related questions
Topic 5—Calculus

View options