24% of students purchased lunch.
2 answers:
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Answer:
x1 = 2 y1 = 1
x2 = 3 y2 = 2
The distance between AB is √(2)
Step-by-step explanation:
I usually used formula
f(x)=a(x+b/2a)^2+c-b/4
f(x)=a(x+b/2a)^2+c-b/4