Answer: option 2
Step-by-step explanation:
If you are graphing quadratic equations of the type
ax^2 + bx + c = 0
The equation will look like a "U" <span>if "a" is positive </span>or it will look like an upside-down "U" <span>if "a" is negative </span>
Answer: This domain is used as part of our extensive ad fraud detection methods to ensure only the highest quality, real vetted users reach advertising partners. Advertiser campaigns are distributed across a broad network of partners and before users are delivered to advertisers, this domain is used to identify and qualify real humans and the right audience.
Step-by-step explanation:
I think the 3rd one idk wait for someone else to answer go compare
