It is true that b^2 - 4ac > 0 means the root is real.
3x²-33x-180=3(x²-11x-60)=3(x-15)(x+4)
the roots are when x-15=0, x=15 and when x+4=0, x=-4
d and h are the answers.
Answer:

Step-by-step explanation:
A zero or a root is determined at the point where the curve cuts or meets the x-axis or horizontal axis.
Answer:
-3/4
Step-by-step explanation:
Use rise over run. Since the line is going down you know it will be negative and basically you just count squares.