Search topics

Search
1 of 8 0-day streak

Read and construct step graphs

DIFFICULTYintrostandardchallengeexam
QUESTION TYPEMix of allChange
Read; left endpoints includedRead; right endpoints includedNOWMix of allRecommended
Question 1 of 8

Calculator allowed

A maintenance service uses stepped call-out charges based on time on site

Each charge band includes its upper endpoint and excludes its lower endpoint. A time on site exactly on a boundary is charged in the band that ends there

Cartesian step graph with horizontal axis Time on site (h) and vertical axis Charge ($). The window is x from -1 to 12 and y from 20 to 27. Band 1 runs from (0, 21) to (3, 21), with an open left end and a filled right end. Band 2 runs from (3, 24) to (7, 24), with an open left end and a filled right end. Band 3 runs from (7, 26) to (9, 26), with an open left end and a filled right end.0246810122021222324252627Time on site (h)Charge ($)
(a)1 mark

What charge applies for 4 hours?

(b)1 mark

What charge applies for 8 hours?