Kaitlin purchased a prepaid phone card for $15. Long distance calls cost 21 cents a minute using this card. Kaitlin used her car
d only once to make a long distance call. If the remaining credit on her card is $5.76, how many minutes did her call last?
1 answer:
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right 3 units down 5 units
right 3 units = (3,0)
down 5 units = (0,-5)
vertex = (h,k) therefore.
Then convert the vertex form into standard form for the equation in the choice.
Thus, the answer is B.
If using the radius, you would multiply the radius by 2*pi, to calculate the circumference, which should be the same as the answer i got.
