Use the image to answer the question.

Question

A step function consisting of four line segments is plotted in quadrant 1 of a coordinate plane.

The cost for shipping by the Boston Mailing Company is based on the amount that a customer spends. For customers spending under $50, the shipping rate is $10; for $50 to under $100, the shipping rate is $7; for $100 to under $140, the shipping rate is $4; for $140 and over the shipping rate is $2. What domain interval will have a shipping rate of $4?

(1 point)
Responses

100<s<140
100 less than s less than 140

100≤s<140
100 less than or equal to s less than 140

50≤s<100
50 less than or equal to s less than 100

100<s≤140

Answer 1

The shipping rate of $4 applies to customers spending from $100 to under $140. Therefore, the correct domain interval for a shipping rate of $4 is:

100 ≤ s < 140

So the response is:

100≤s<140