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Duplicate of Assessment Y9 - Semester 1 - Algebra Flashcards | StudBud
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Duplicate of Assessment Y9 - Semester 1 - Algebra
Duplicate of Assessment Y9 - Semester 1 - Algebra
20 terms
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Questions
20
Answers
1
Factorise Fully x
2
- 10x + 21
(x-3)(x-7)
(x+3)(x-7)
(x+3)(x+7)
(x-3)(x+7)
2
Make '
p'
the subject of this formula, m = n - p
2
p = √(m -n)
p2 = n - m
p = √(n -m)
p2 = n +m
3
(x+y)(x-y) = x
2
- y
2
False
True
4
find the area of the circle when π = 22/7, d = 7cm. Area = πr
2
154 cm2
115.5 cm2
38.5 cm2
77 cm2
5
v= u + at & at = v - u represent the same formula
False
True
6
What is the subject of the formula y = mx + c
c
y
m
x
7
Convert 104
0
Fahrenheit to Celsius, F = 9c/5 + 32
400 c
260 c
54.20 c
75.50 c
8
Factorise Fully 2x
3
- 8x
2x(x-2)(x+2)
2(x3 - 4x)
2x(x2 - 4)
x(2x2 - 8)
9
Make m the subject of following formula y = mx - c
m = ( y + c) / x
m = y + c - m
m = y - c - m
m = ( y - c) / x
10
Factorise fully x
2
+ 3x - 40
(x+10)(x-4)
(x-8)(x+5)
(x-5)(x+8)
(x-8)(x-5)
11
(x - 7)
2
= x
2
- 14x + 49
False
True
12
(2a - b)
2
= 4a
2
- b
2
True
False
13
Find the area of the rectangle below
(x+2)(x+3)
x2 + 5x + 6
x2 + 2x + 3x - 6
x2 + 2x + 3x + 6
14
(x-y)
2
= x
2
+ 2xy - y
2
True
False
15
Factorise fully x
2
+ 4x - 21
(x+3)(x-7)
(x-3)(x-7)
(x+3)(x+7)
(x-3)(x+7)
16
Expand two brackets (n-5)(n+7)
n2 + 2n + 35
n2 - 2n + 35
n2 - 2n - 35
n2 + 2n - 35
17
Factorise fully (x+y)
2
- (x-y)
2
0
(2x+2y)2
4xy
(2x-2y)2
18
Expand brackets and simplify 2(a+5) -3(1-2a)
8a - 7
4a + 7
8a + 7
-4a + 7
19
Select the correct statement describe an algebraic expression
A combination of numbers/letters or both joined by mathematical operations
Two statements` which combined with equal sign
Relationship between unknown values
A relationship between statements that is always true
20
If S = ut + 1/2at
2
, find the value of S, when u=5, t=2 and a= -1
-12
8
12
-8
