A construction crew is lengthening a road. Let y represent the total length of the road (in miles). Let x represent the number of days the crew has worked. Suppose that x and y are related by the equation y=59+4x. Answer the questions below. Note that a change can be an increase or a decrease. For an increase, use a positive number. For a decrease, use a negative number.

What was the road's length when the crew started working? miles

What is the change per day in the road's length? miles

Question

Mathematics

Allisson Bush

30 March, 17:36

A construction crew is lengthening a road. Let y represent the total length of the road (in miles). Let x represent the number of days the crew has worked. Suppose that x and y are related by the equation y=59+4x. Answer the questions below. Note that a change can be an increase or a decrease. For an increase, use a positive number. For a decrease, use a negative number.

What was the road's length when the crew started working? miles

What is the change per day in the road's length? miles

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Answers (1)

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Jade Ellison · Answer 1

Based off of the equation, the road was 59 miles to start with. Because x represents the number of days working, and it is being multiplied by 4, the crew is changing the road by 4 miles a day.