Lesson Example Discussion Quiz: Class Homework |
Quiz In Class |
Title: Non-linear equations in one variable |
Grade: 1400-a Lesson: S1-L6 |
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 |
\$57"x"^2 + (57"b" + "a")"x" + "ab" = 0\$ |
A) 19 B) \$1/(57)\$ C) 57 D) \$1/(19)\$ |
2 |
\$"x"^2 - 2"x" - 9 = 0\$ |
A) 25 B) 10 C) 20 D) 30 |
3 |
If \$3"x"^2 - 18"x" - 15 = 0\$, what is the value of \$"x"^2 - 6"x"\$? |
A) 8 B) 10 C) 12 D) 5 |
4 |
\$ ("x"^2) /(\sqrt("x"^2 - "c"^2)) = ("c"^2)/(\sqrt("x"^2 - "c"^2) ) + 39\$ |
A) \$ \sqrt("c"^2 + 39^2)\$ B) \$- \sqrt("c"^2 - 39^2)\$ C) \$ \sqrt("c"^2 - 39^2)\$ D) \$- \sqrt("c"^2 + 39^2)\$ |
5 |
\$ (4"x"^2)/("x"^2 - 9) - (2"x")/("x" + 3) = 1/("x" - 3)\$ |
A) \$- 1/2\$ B) -3 C) \$1/2\$ D) 3 |
6 |
Which of the following equations has exactly ONE real number solution? |
A) \$\sqrt("x"^2 + 1) = 2\$ B) \$"x"^3 - 4"x" = 0\$ C) \$2^"x" - 3 = 0\$ D) sin(x) + cos(x) = 1 |
7 |
Find the solutions to \$\sqrt("x" + 2) + \sqrt("x") = 3\$. |
A) \$"x" = 49/36\$ B) \$"x" = 36/49\$ C) \$"x" = 39/46\$ D) \$"x" = 46/39\$ |
8 |
Determine the roots of \$("x"^2 - 1)/"x" = 2\$. |
A) \$"x" = 1 + \sqrt(2)\$, \$"x" = 1 - \sqrt(2)\$ B) \$"x" = 2 + \sqrt(-2)\$, \$"x" = 2 - \sqrt(-2)\$ C) \$"x" = 1 + \sqrt("x"^2)\$, \$"x" = 1 + \sqrt("x"^2)\$ D) \$"x" = 2 + \sqrt(-2)\$, \$"x" = 1 + \sqrt(-2)\$ |
9 |
Find all real solutions to \$(1/"x"^2) - 2"x" + 1 = 0\$. |
A) x = \$11/2\$ B) x = 1 C) x = 4 D) x = 2i |
10 |
\$1/("x"^2 + 10"x" + 25) = 4\$ |
A) \$5/2\$ B) \$1/2\$ C) \$11/2\$ D) \$9/2\$ |
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