Grade 8 Extension Problems Linear Functions and Models
1.
10 000 people attended a sports match. Let x be the number of adults attending the sports match
and y be the number of children attending the sports match.
(a)
Write down an equation in x and y.
(1
Name:_
1.
IB Math Studies Paper 2 Summer Practice
The profit (P) in Swiss Francs made by three students selling homemade lemonade is modelled
by the function
P=
1 2
x + 5x 30
20
where x is the number of glasses of lemonade sold.
(a)
Copy and complete the
Functions and Quadratics Review IB Problems
1.
2
The graph of y = x 2x 3 is shown on the axes below.
y
20
10
4
3
2
1
0
(a)
2
3
4
5
6
x
Draw the graph of y = 5 on the same axes.
(b)
1
Use your graph to find:
2
(i)
the values of x when x 2x 3 = 5
(ii)
the v
NORMAL DISTRIBUTION
For each example:
1. Write down the mean and standard deviation.
2. What is the information about (what do you think)?
MEAN: 5.8
SD: 5.24
The graph is about the distribution of a wide receiver 40 yard dash times (20062012)
MEAN: 43
SD:
1.
A room is in the shape of a cuboid. Its floor measures 7.2 m by 9.6 m and its height is 3.5 m.
(a)
Calculate the length of AC.
(b)
Calculate the length of AG.
(c)
Calculate the angle that AG makes with the floor.
(a)
AC = 7.2 + 9.6
2
2
2
AC = 12 m
(b)
IB Language and
Literature SL
Paper 1
Unseen Commentary
Review & Advice
1
What is Paper 1?
Paper 1 is one of two examination papers that are set and marked externally, and it counts for 25% of the
total mark.
Paper 1 depends heavily on all the skills shap
IB MATH STUDIES SL 1: IB-Style Review Questions for Test
Linear and Simultaneous Equations, Linear Relations, and Functions
1.
2
A quadratic function, f(x) = ax + bx, is represented by the mapping diagram below.
(a)
Use the mapping diagram to write down t