Which scatterplot shows a negative correlation?
1 answer:
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Answer:
The equation is
Step-by-step explanation:
Linear function:
A linear function for the amount of money in an account after t days is given by:
In which A(0) is the initial value and m is the daily cost.
Your EZ Pass account begins with $80. It costs you $4/day.
This means that
So
Answer:
It will take her 3 hours to read 120 pages.
Step-by-step explanation:
The number of pages read(y) after x hour can be modeled by a linear function in the following format:
In which a is the number of pages read per hour and b is the initial number of pages read.
A straight line goes through (0, 0)
This means that when
So
(0.5, 20)
When
So
The function in:
According to the graph, which statement must be true?
It will take her 2 hours to read 60 pages.
Less than 2 hours for 60 pages, so this is false.
It will take her 3 hours to read 120 pages.
This statement is true.
It will take her 4 hours to read 180 pages.
More than 4 hours to read 180 pages. So false.
It will take her 5 hours to read 210 pages.
More than 5 hours to read 210 pages. So false.