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Answer:
a) a straight line
b) a hyperbola
Step-by-step explanation:
a) When a = v/r is plotted against v as the independent variable, it will be a straight line through the origin with a slope of 1/r.
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b) When a = v/r is plotted against r as the independent variable, it will be a hyperbola with a "constant of proportionality" of v. Here, a is inversely proportional to r.