A rectangular suitcase measures 2 ft high by 3 ft long by 1 ft wide. Can an umbrella that is 42 inches long be packed in the suitcase? Justify your answer.

yes (see below)

Step-by-step explanation:

Use diagonal of a cuboid equation:  

where l is the length, w is the width and h is the height

ft

x 12 = 44.90 inches

As 42 < 44.90, the umbrella can be packed in the suitcase.

bottom left

step-by-step explanation:

the x's and the y's both go up the same amount each time, therefore it will be a linear function because it will go in a straight line when drawn on a graph.

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