Quiz In Class

Title: Linear Equations with Two Variables

Grade: 1300-a Lesson: S1-L2

Explanation: Hello Students, time to practice and review. Let us take next 10-15 minutes to solve the ten problems using the Quiz Sheet. Then submit the quiz to get the score. This is a good exercise to check your understanding of the concepts.

Quiz: in Class

Problem Id Problem Options

1

y = 3x
2x + y = 12

The solution to the given system of equations is (x, y). What is the value of 5x?

A) 24

B) 12

C) 15

D) 5

2

The score on a trivia game is obtained by subtracting the number of incorrect answers from twice the number of correct answers. If a player answered 40 questions and obtained a score of 50, how many questions did the player answer correctly?

A) 40

B) 30

C) 20

D) 10

3

In the xy-plane, the graph of y = x + 3 intersects the graph y = 2x - 6 of at the point (a, b). What is the value of a?

A) 3

B) 6

C) 12

D) 9

4

If 4x + y = 14 and 3x + 2y = 13, What is the value of x - y?

A) 3

B) 2

C) 0

D) 1

5

3x - 4y = 17
In the xy-plane, the graph of a line with an x-intercept of (c, 0) and y-intercept of (0, k), where c and k are constants, can be represented by the equation above. What is the value of \$c/k\$?

A) \$4/3\$

B) \$3/4\$

C) \$- 4/3\$

D) \$- 3/4\$

6

\$y = -1/9 (x)\$

\$ y = 1/2 (x)\$
The solution to the given system of equations is (x, y). What is the value of x?

A) - 9

B) - 7

C) 0

D) 2

7

\$y = 2x^2 - 21x + 64\$ and y = 3x + a
In the given system of equations, a is a constant. The graphs of the equations in the given system intersect at exactly one point, (x, y), in the xy-plane. What is the value of x?

A) 6

B) - 8

C) - 6

D) 8

8

\$y = 5k x^2 + 2x + 3\$ and \$y /10 = - x\$
The system of equations above has exactly one solution. If k is a constant, What is the value of k?

A) \$1/15\$

B) \$1/20\$

C) \$1/18\$

D) \$1/13\$

9

3x = 12 and - 3x +y = - 6
The solution to the given system of equations is (x, y). What is the value of y?

A) 4

B) 6

C) 12

D) 8

10

x + 3y = 29
3y = 11

The solution to the given system of equations is (x, y). What is the value of x?

A) - 20

B) 6

C) - 10

D) 14


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