introduction to algebra module1 ass

Assessment 1) Write in shorter format a) 3Xa

2)

5Xb

c)

cX4

d)

xXy

e)

1Xx

f)

xX0

g)

2X3Xx

h)

2X3XxXy

l)

sXtX2X8

p)

(4 + 3) X x

If x is a variable with value 4, which number value is given by the following? a) x+3 b) 2x – 4 c)

3)

b)

3x – 2x

If x is any of the following numbers: 0,1,2,3,4,5, which number must be used in the place of x to make the left side of the “ = ” equal to the right side? a) x+1=3 b) x + 3 = 5 c)

x+1=2

d)

x–4=0

e)

2x = 6

f)

2x = 4

g)

3x = 6

h)

4x = 0

i)

x 2 2

j)

x 1 3

4)

5)

k)

2x + 1 = 7

l)

3x + 1 = 10

m)

3x + 2 = 17

n)

3x + x = 12

o)

4x + 3 = 5x + 1

Write down a mathematical sentence for the following: a) The difference between 2 and a b)

The product of 4 and d

c)

The quotient of a and b

d)

The sum of x and y

e)

The difference between y and b

g)

Eight added to q

h)

Multiply 3 with d

What will be an algebraic expression for a) A number that is 4 more than x b)

A number that is the square of x

c)

A number that is three times x

6)

Given: 9 x2  7 x  3  y 2  13 y Write down the following sentences but complete it by using words from the following list: 9, y 2 , 7x, variable, constant, term. a) x is a ..... b)

3 is the .....

c)

... is the coefficient of x 2 .

d)

1 is the coefficient of ......