Answer:
A: Nonlinear
B: Constant=0, Decreasing=M, Increasing=K
C: 2-3-3
Explanation:
1. Linear graph - one with a line that has the same slope all the way through
The line doesn't have the same slope the whole way through because at one part it flattens and also decreases
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2. Remember: Increase (up), decrease (down), constant (constant)
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3. In my words, I don't know if they're asking the pattern or technical, but you can add on to the 2 mins walk, 3 mins stop, then 2 mins walk again.
Hope it helps