A bookstore charges $4 for all children's books. Elijah graphs the function that gives the total cost, y, in dollars to buy x nu
mber of books. Which ordered pair is a point on the graph of the function?
A) (2,8)
B) (4,12)
C) (9,18)
D) (20,5)
2 answers:
Answer:
A is the right answer
Step-by-step explanation:
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x>3
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Answer:
Step-by-step explanation:
5x + y = 9
-10x + 7y = 18
10x + 2y = 18
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9y = 36
y = 4
5x + 4 = 9
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x = 1
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answer is D
Answer:
y-4=-2(x+1)
Step-by-step explanation:
y-y1=m(x-x1)
m=(y2-y1)/(x2-x1)
m=(-4-4)/(3-(-1))
m=-8/(3+1)
m=-8/4
m=-2
y-4=-2(x-(-1))
y-4=-2(x+1)
Answer
Square prism
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