alleryA quadratic equation has two equal real roots when its discriminant is:
Aequal to zero
Bgreater than zero
Cnegative
Dless than zero
Answer & Solution
Correct answer: A. equal to zero
D = 0 → two equal (coincident) real roots.
Keep practising Unit 3B: Implicit Differentiation and Inverse Functions
Browse all Unit 3B: Implicit Differentiation and Inverse Functions questions for AP Calculus AB, or explore more Mathematics topics.
Related questions
An event is described as having 'EVEN CHANCE'. Its probability is:If you toss a fair coin and the probability of heads is 1/2, what is the probability of NOThe probability of drawing any number from 2 to 10 from a standard deck of 52 cards is:If a bag has 6 cards numbered 1 to 6, and 3 of them are purple, the probability of drawingThe probability of an IMPOSSIBLE event is:Probability measures:Solve 3 ≤ 2x - 1 ≤ 7 (a DOUBLE inequality) for real x.Identify a QUADRATIC inequality (not a linear inequality).