Read the conjecture shown. *All quadratic equations with a vertex above the z-axis have no real roots."
Which equation refutes the given conjecture?
O A y=x^2+ 2
O B. y=x^2 - 2
OC. y=-^2+2
OD. y=-^2 - 2

Ask your question to the AI advisor

Ai-bot is an expert in any field and is the perfect companion for reliable and useful answers and advice on a variety of topics, including science, history, technology, art, sports, health, culture and more.