Which function has a vertex at the origin?
o
fx) = (x+4)²
f(x) = x(x – 4)
ax) = (x - 4)(x + 4)
fx) = x²

Anyone know? will mark brainliest if correct

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

The water company charges a residential customer $41 for the first 3,000 gallons of water used and $1 for every 200 gallons used over 3000 gallons. if the water bill was $58 how many gallons of water were usedanswersa 3400 gallonsb 6000 gallonsc 6400 gallons d 7000 gallons