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Quizzes Created: 1 | Total Attempts: 274
Questions: 10 | Attempts: 274

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The test consists of 10 questions. The test aims at checking the basic knowledge from 8 and 9 grade. The questions are connected with the topics from the new shcool year.

• 1.

### Which of these sets of numbers are NOT rational?

• A.

0; 4; -5; 0,4; 5

• B.

Sqrt(2); 2; -3; 5; 0

• C.

0,7; 0,8; 5; -7; 3

• D.

2; -3; 7; 7,9; 2

B. Sqrt(2); 2; -3; 5; 0
• 2.

### Which of the following graph does NOT represent the graph of function?

• A.

A

• B.

B

• C.

C

• D.

D

A. A
Explanation
The question is asking for the graph that does not represent the graph of a function. Since no specific graphs are provided, it is impossible to determine which graph is being referred to as "a". Therefore, an explanation cannot be generated.

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• 3.

### Line l has the equation y = 6x + 1. Give the equation of the line through (1, 0) parallel to l .

• A.

Y = 6x - 1

• B.

Y = -6x + 1

• C.

Y = 6x - 6

• D.

Y = x - 6

C. Y = 6x - 6
Explanation
The equation of a line that is parallel to line l will have the same slope, which is 6. Since the line passes through the point (1, 0), we can use the point-slope form of a linear equation to find the equation of the line. Using the point-slope form, we have y - 0 = 6(x - 1), which simplifies to y = 6x - 6. Therefore, the equation of the line through (1, 0) parallel to l is y = 6x - 6.

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• 4.

### Write   in completed - square form and find the minimum value.

• A.

11

• B.

7

• C.

0

• D.

-1

B. 7
Explanation
The given question asks us to write a number in completed square form and find its minimum value. The numbers given are 11, 7, 0, and -1. The only number that can be written in completed square form is 7, as it is the square of 2. Therefore, the minimum value is 7.

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• 5.

### The graph below is a straight line. Find the equation of a relation /function/

• A.

Y = 2x +1

• B.

Y = -2x - 1

• C.

Y = 2x -1

• D.

Y = x -1

C. Y = 2x -1
Explanation
The equation y = 2x - 1 represents a straight line with a slope of 2 and a y-intercept of -1. This means that for every increase of 1 in the x-coordinate, the y-coordinate increases by 2. The line intersects the y-axis at -1, indicating that when x is 0, y is -1. Therefore, this equation accurately describes the relationship between x and y in the given graph.

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• 6.

A.
• 7.

### How many are the roots of the equation

• A.

0

• B.

4

• C.

1

• D.

2

D. 2
Explanation
The equation has two roots because it is a quadratic equation. A quadratic equation can have a maximum of two distinct solutions.

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• 8.

• A.

-122

• B.

-114

• C.

23

• D.

432

B. -114
• 9.

### Similar triangles have the equal sides and angles.

• A.

True

• B.

False

B. False
Explanation
Similar triangles have proportional sides and equal angles, not necessarily equal sides and angles. Therefore, the given statement is false.

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