This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Maths Chapter 4 Quadratic Equations – Quiz 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Maths Chapter 4 Quadratic Equations Quiz 9 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Solve using square roots.5b$^{2}$-4 = 41 A) B = 9, b =-9. B) B = 3, b =-3. C) B = 8, b =-8. D) No solution. Show Answer Correct Answer: B) B = 3, b =-3. 2. In the quadratic formula, if b$^{2}$-4ac>0, then the quadratic equation has A) Two imaginary solutions. B) Two different real solutions. C) Two equal real solutions. D) None of these. Show Answer Correct Answer: B) Two different real solutions. 3. Solve by factoringx$^{2}$ + 13x + 12 = 0 A) X =-12, -1. B) X = 12, 1. C) X = 13, 1. D) X =-13, -1. Show Answer Correct Answer: A) X =-12, -1. 4. Which of the following is a quadratic equation? A) $ 3s^2+s-4 $. B) $m^2-8m-1=0$. C) $ X-1 = x $. D) $ 5^2+choeja $. Show Answer Correct Answer: B) $m^2-8m-1=0$. 5. Decide on the best method:3a$^{2}$ + 13a =-4 A) Square Root Method. B) Factor Method. C) Complete the Square. D) Quadratic Formula. Show Answer Correct Answer: D) Quadratic Formula. 6. What is the value of y when solving this system?-2x + 8y = 13-2x + 4y = 17 A) 2. B) -2. C) 1. D) -1. Show Answer Correct Answer: D) -1. 7. A parabola has a vertex at (-3, 2). Where is the axis of symmetry? A) Y =-2. B) X = 3. C) X =-3. D) Y = 2. Show Answer Correct Answer: C) X =-3. 8. Solve using the Quadratic Formula:2x$^{2}$ + 2x-12 = 0 A) X =-2, 3. B) X = 2, 3. C) X = 2, -3. D) X =-2, -3. Show Answer Correct Answer: C) X = 2, -3. 9. Identify the 'c' value:y = 16x$^{2}$-8x-24 A) 16. B) -8. C) 24. D) -24. Show Answer Correct Answer: D) -24. 10. The solutions of the quadratic equation x$^{2}$-6x+8=0 are A) X =-2 or x =-4. B) X = 2 or x = 4. C) X = 8 or x =-1. D) X = 8 or x = 1. Show Answer Correct Answer: B) X = 2 or x = 4. 11. What is the form of the function:$y=2(x+3)^2-10$ A) Vertex. B) Standard. C) Factored. D) None of the above. Show Answer Correct Answer: A) Vertex. 12. Solve 8n$^{2}$ + 10n-3 = 0 A) N = $^{-1}$/$_{8}$, $^{10}$/$_{3}$. B) N = $^{4}$/$_{5}$, -2. C) N = $^{1}$/$_{4}$, $^{-3}$/$_{2}$. D) N = 2, -12. Show Answer Correct Answer: C) N = $^{1}$/$_{4}$, $^{-3}$/$_{2}$. 13. Rewrite this quadratic in factored form:x$^{2}$-15 = 1 A) (x-4)(x + 4). B) (x-4)(x-4). C) (x + 4) (x + 4). D) (x-8)(x + 2). Show Answer Correct Answer: A) (x-4)(x + 4). 14. Which of the following is in the standard form? A) J $^{a} $-neighborhood + 12 = 0. B) X$^{3}$-x$^{2 }$+ 3x-8 = 0. C) X$^{2}$ +9x = 34. D) Y$^{2}$-10 =-3y. Show Answer Correct Answer: A) J $^{a} $-neighborhood + 12 = 0. 15. Solve 7 $x^2$ A) X=5. B) X=7. C) X= $\pm\sqrt{7}$. D) X= $\pm\sqrt{5}$. Show Answer Correct Answer: D) X= $\pm\sqrt{5}$. 16. What is the first step in using the quadratic formula? A) Simplify the equation. B) Ensure the equation is in standard form. C) Identify the values of a, b, and c. D) Memorize the formula. Show Answer Correct Answer: B) Ensure the equation is in standard form. 17. WHAT SHOULD YOU DO NEXT? $2x^2+8=10$ A) A. Divide both sides by 2. B) B. Isolate $2x^2$. C) C. Square root both sides. D) None of the above. Show Answer Correct Answer: B) B. Isolate $2x^2$. 18. Which of the following in NOT a perfect square? A) 49. B) 81. C) 111. D) 144. Show Answer Correct Answer: C) 111. 19. Find the Vertex:f(x) = x$^{2}$ + 10x + 21 A) (-5, -4). B) (1, 10). C) (10, 21). D) No Real Solution. Show Answer Correct Answer: A) (-5, -4). 20. Identify a of the following quadratic function:y = x$^{ 2 }$+ 16x + 64 A) 2. B) 1. C) 16. D) 64. Show Answer Correct Answer: B) 1. 21. What is step one in using the quadratic formula to solve a problem? A) Find the discriminant ( $b^2-4ac$. B) Identify A, B, and C. C) Simplify the radical ( $\sqrt{b^2-4ac}$. D) Plug A, B, and C into the formula. Show Answer Correct Answer: B) Identify A, B, and C. 22. What are the solutions to this quadratic equation? $-2x^2-3x+7$ A) $x=-3, \\x=7$. B) No Real Solutions. C) $x=\frac{3+\sqrt{17}}{-4}, \\x=\frac{3-\sqrt{17}}{-4}$. D) $x=\frac{-3+\sqrt{1}}{4}, \\x=\frac{-3-\sqrt{1}}{4}$. Show Answer Correct Answer: C) $x=\frac{3+\sqrt{17}}{-4}, \\x=\frac{3-\sqrt{17}}{-4}$. 23. How did we transform from y=x$^{2?}$y =-3x$^{2}$$^{}$ A) Reflection and vertical shift down. B) Reflection and vertical stretch. C) Horizontal stretch. D) Reflection and vertical compression. Show Answer Correct Answer: B) Reflection and vertical stretch. 24. What should you do first in solving this equation?x$^{2}$ + 6x-13 = 3 A) Get factored form. B) Write down:a=1, b=6, c=-13. C) Make it equal 0 by subtracting 3 on each side. D) Type it all in a calculator. Show Answer Correct Answer: C) Make it equal 0 by subtracting 3 on each side. 25. What are the roots / solutions of the quadratic equation 3x$^{2}$ = 300? A) X = 10. B) X = 9. C) X = + 9. D) X = + 10. Show Answer Correct Answer: D) X = + 10. ← PreviousNext →Related QuizzesClass 10 Maths Chapter 4 Quadratic Equations Quiz 1Class 10 Maths Chapter 4 Quadratic Equations Quiz 2Class 10 Maths Chapter 4 Quadratic Equations Quiz 3Class 10 Maths Chapter 4 Quadratic Equations Quiz 4Class 10 Maths Chapter 4 Quadratic Equations Quiz 5Class 10 Maths Chapter 4 Quadratic Equations Quiz 6Class 10 Maths Chapter 4 Quadratic Equations Quiz 7Class 10 Maths Chapter 4 Quadratic Equations Quiz 8Class 10 Maths Chapter 4 Quadratic Equations Quiz 10Class 10 Maths Chapter 4 Quadratic Equations Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books