This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Maths Chapter 4 Quadratic Equations – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Maths Chapter 4 Quadratic Equations Quiz 7 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. If there was no GCF, and it had 2 parts ..... DOTSFactor:x$^{2}$-9 A) ( x-9) (x-9). B) (x + 3) (x + 3). C) (x + 3) (x-3). D) ( x + 9) (x-9). Show Answer Correct Answer: C) (x + 3) (x-3). 2. Solve using the square root property. $2x^2+5=19$ A) $x=\pm\sqrt{7}$. B) $x=\pm\sqrt{12}$. C) $x=\pm2\sqrt{3}$. D) $x=7$. Show Answer Correct Answer: A) $x=\pm\sqrt{7}$. 3. Which of the following equations matches standard form of a quadratic? A) Ax + by = c. B) Y = a(x-h)$^{2}$ + k. C) Y = ax$^{2}$ + bx + c. D) Y = mx + b. Show Answer Correct Answer: C) Y = ax$^{2}$ + bx + c. 4. What formula will find the x-coordinate (h) of the vertex (h, k) for standard form? A) $x=\frac{-b}{2a}$. B) $x=\left(\frac{b}{2}\right)^2$. C) All the above. D) None of the above. Show Answer Correct Answer: A) $x=\frac{-b}{2a}$. 5. Identify what A is in the given equationf(x)= 3x$^{2}$+5x+2 A) 2. B) 5. C) X. D) 3. Show Answer Correct Answer: D) 3. 6. When completing the square with x$^{2}$-4x + 5 = 20, what goes in the blank?(x- ..... )$^{2}$ + 1= 20 A) 4. B) 2. C) 8. D) 20. Show Answer Correct Answer: B) 2. 7. In a projectile motion problem, if the question is asking when an object will reach its maximum height, what part of the graph are you looking for? (Provided y is the height of the object and x is time) A) The y-intercept. B) The x-intercepts. C) The x-coordinate of the vertex. D) The y-coordinate of the vertex. E) Something else. Show Answer Correct Answer: C) The x-coordinate of the vertex. 8. If the discriminant equals 0, then the quadratic has: A) 1 Real Solution. B) 2 Real Solutions. C) Half a Solution. D) No Real Solution. Show Answer Correct Answer: A) 1 Real Solution. 9. Which is another way of correctly expressing (x-3)(x-3)? A) (x$^{2}$-3$^{2}$). B) (x$^{2}$-3). C) (x + 3)(x-3). D) (x-3)$^{2}$. Show Answer Correct Answer: D) (x-3)$^{2}$. 10. Which is the ONLY method that can be used to solve this equation?2x$^{2}$-7x + 2 = 0 A) Square Root Method. B) Factor Method. C) Complete the Square. D) Quadratic Formula. Show Answer Correct Answer: D) Quadratic Formula. 11. What number added would make a perfect square trinomial?x$^{2}$-8x + ..... A) -4. B) -64. C) 12. D) 16. Show Answer Correct Answer: D) 16. 12. What are the roots of $2x^2-18=0$ A) -3. B) 3. C) -3 and 3. D) -9 and 9. Show Answer Correct Answer: C) -3 and 3. 13. Solve using the quadratic formula.2x$^{2}$-9x-35 = 0 A) X = 7/2, x =-6. B) X =-5/2, x =5. C) X =-3/7, x =6. D) X =-5/2, x = 7. Show Answer Correct Answer: D) X =-5/2, x = 7. 14. George expands his deck by adding x ft to each side. The original deck was a 5' x 10'. The new deck's area will be 250 ft sq. How much is "x" the amount added to each side? A) X = 5. B) X = 20. C) X = 10. D) X = 15. Show Answer Correct Answer: A) X = 5. 15. A car bought for $ 13, 000 depreciates at 15% per year. Use an exponential function to find the value of the car after 5 years. A) $ 12, 053.81. B) $ 5, 768.17. C) $ 26, 147.64. D) $ 14, 004.69. Show Answer Correct Answer: B) $ 5, 768.17. 16. Solve by finding square roots and simplify completely:$x^2-16=0$ A) $x=\pm16$. B) $x=4$. C) $x=\pm4$. D) No real solutions. Show Answer Correct Answer: C) $x=\pm4$. 17. (7-5I) (7 + 5i) A) 74. B) 75. C) 74-1. D) None of the above. Show Answer Correct Answer: A) 74. 18. What effects does "k" have on the parent function? A) Vertical stretch/compression. B) Horizontal shifts (left/right). C) Vertical shifts (up/down). D) None of the above. Show Answer Correct Answer: C) Vertical shifts (up/down). 19. Solve using the Quadratic Formulax$^{2}$ + 4x-40 =-8 A) X =-10, -4. B) X =-4, 10. C) X =-8, 4. D) X = 8, -4. Show Answer Correct Answer: C) X =-8, 4. 20. A parabola is upside-down when a is: A) Negative. B) Positive. C) 0. D) Infinite. Show Answer Correct Answer: A) Negative. 21. What is the standard form of 9x-16 = 3x-x$^{2}$? A) X$^{2}$ +12x-16 = 0. B) 2x$^{2}$ + 9x-16 = 0. C) X$^{2}$ + 6x-16 = 0. D) -x$^{2}$ + 6x-16= 0. Show Answer Correct Answer: C) X$^{2}$ + 6x-16 = 0. 22. What does the discriminant determine? A) Whether the graph goes up or down. B) The vertex. C) The number of solutions. D) The y-intercept. Show Answer Correct Answer: C) The number of solutions. 23. Fill the blank spaces to complete the perfect square trinomialx$^{2}$-18x+ ..... =(x- ..... )$^{2}$ A) 9 and 3 respectively. B) 81 and 9 respectively. C) -9 and-3 respectively. D) -81 and-9 respectively. Show Answer Correct Answer: B) 81 and 9 respectively. 24. Solve using the Quadratic Formula. Round to the nearest hundredth if necessary.4x$^{2}$ + 4x = 3 A) X =.5, -1.5. B) X =-.5, -1.5. C) X =.5, -1.67. D) X =-.5, 1.67. Show Answer Correct Answer: A) X =.5, -1.5. 25. The length of a rectangle is 15 more than the width. The area is 350. Which equation best represents this situation if w represents the width of the rectangle? A) W$^{ 2 }$ + 350w +15 = 0. B) W$^{ 2 }$ + 15w-350 = 0. C) W$^{ 2 }$ + 15w +350 = 0. D) W$^{ 2 }$-350w +15 = 0. Show Answer Correct Answer: B) W$^{ 2 }$ + 15w-350 = 0. ← 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 8Class 10 Maths Chapter 4 Quadratic Equations Quiz 9Class 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