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WorksheetsMATHEMATICS 9 - ELIMINATION ROUND
Total questions: 20
Worksheet time: 20mins
It is a polynomial equation of degree 2 that can be written in the form of ax2+bx+c=0; where a, b, and c are real numbers and c not equal to zero.
Linear Equation
Linear Inequality
Quadratic Equation
Quadratic Inequality
What number must be added to x2 – 30x + _____ to make it a perfect square trinomial?
144
196
225
256
What is the nature of the roots of a quadratic equation if the value of its discriminant is zero?
The roots are not real
The roots are rational and equal
The roots are irrational and equal
The roots are irrational and not equal
The cost c of caimito varies directly as its weight w. this relationship is written as
c = kw
k = cw
w = k/c
c = k/w
Which is an example of direct variation?
xy = 5
y = 5/x
y = 2x
3/y = x
Which is an example of joint variation?
y = 5x
xy = 5
a = 3bc
3/y = x
a quadrilateral with exactly one pair of parallel sides is known as _____
square
rectangle
trapezoid
kite
Which of the following is NOT a parallelogram?
rectangle
rhombus
square
trapezoid
The comparison of two or more quantities is known as _____
ratio
proportion
theorem
postulate
If two ratios are equal, then it is called a _____
proportion
theorem
postulate
similarity
To complete the square in the equation x2 + 6x = 1, what must be added to both sides of the equation?
3
9
10
35
What is the nature of the roots of a quadratic equation if the value of its discriminant is negative?
The roots are not real
The roots are rational and equal
The roots are rational and not real
The roots are irrational and not equal
In r = 10/t, what is the value of the constant k?
5
10
15
20
What happens to T when H is doubled in the equation T = 4h?
T is doubled
T is tripled
T is halved
T becomes zero
Which of the following statements is TRUE?
A trapezoid can have four equal sides
A trapezoid can have three right angles
Base angles of an isosceles trapezoid are congruent
Diagonals of an isosceles trapezoid bisect each other
What are the roots of the quadratic equation x2 – 3x – 10 = 0?
1 and 5
-2 and 5
-10 and 1
10 and -1
If the area of a rectangle is given by the expression x2 + 4x + 3 and the width is x+3, what is the length?
x + 1
x + 2
x - 1
x – 2
If x and y are nonnegative real numbers, what is square root of 25x4y6 ?
y/5x
5xy
5x3y2
5x2y3
If 3 men can do a portion of a job in 8 days, how many men can do the same job is 6 days?
3
4
5
6
The diagonals of a kite have lengths 8cm and 12cm. Find its area.
45cm2
46cm2
47cm2
48cm2
