Selected MCQ

Current Question
If roots are equal, quadratic graph touches x-axis at ____.
  • A. One point
  • B. Two points
  • C. No point
  • D. Infinite points
Correct Answer: A
Explanation:
A double root gives a single intersection.
Related Question 1
If roots are imaginary, graph ____.x-axis?
  • A. Cuts
  • B. Touches
  • C. Does not intersect
  • D. Overlaps
Correct Answer: C
Explanation:
No real roots → no intersection.
Related Question 2
If roots are real and distinct, graph cuts x-axis at ____.
  • A. One point
  • B. Two points
  • C. No point
  • D. Infinite points
Correct Answer: B
Explanation:
Two real roots → two intersections.
Related Question 3
If roots are α and β, then product αβ equals ____.
  • A. b/a
  • B. −b/a
  • C. c/a
  • D. −c/a
Correct Answer: C
Explanation:
Product = c/a.
Related Question 4
If roots are α and β, then sum α + β equals ____.
  • A. b/a
  • B. −b/a
  • C. c/a
  • D. −c/a
Correct Answer: B
Explanation:
Standard formula.
Related Question 5
If roots of Equation are equal, the discriminant is ____.
  • A. Positive
  • B. Negative
  • C. Zero
  • D. Infinite
Correct Answer: C
Explanation:
Equal roots when D = 0.