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Question
There are 10 birds in a tree. For every minute, 2 birds fly away from the tree. The relation between the number of birds and the time is given. How many birds will be there after 3 minutes?
There are 10 birds in a tree. For every minute, 2 birds fly away from the tree. The relation between the number of birds and the time is given. How many birds will be there after 3 minutes?
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Solution
The correct option is A 4
Time is represented on the x-axis.
Number of birds is representd on the y-axis.
From the graph, we observe that,
when time = 1 minute, number of birds = 8
When time = 2 minutes, number of birds = 6
Hence, the relation between the number of birds and time is
n = 10 - 2t
Hence, number of birds after 3 minutes = 10 - 2(3) = 4
Time is represented on the x-axis.
Number of birds is representd on the y-axis.
From the graph, we observe that,
when time = 1 minute, number of birds = 8
When time = 2 minutes, number of birds = 6
Hence, the relation between the number of birds and time is
n = 10 - 2t
Hence, number of birds after 3 minutes = 10 - 2(3) = 4
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