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After crossing a bridge, Brian drives at a constant speed. The graph below shows the distance (in miles) versus the time since he crossed the bridge (in FUse the graph to answer the questions.(a) How much does the distance increase for each hour since Brian crossed the bridge?(b) What is the slope of the line?

After Crossing A Bridge Brian Drives At A Constant Speed The Graph Below Shows The Distance In Miles Versus The Time Since He Crossed The Bridge In FUse The Gra class=

Answer :

ANSWER

(a) 40 miles

(b) 40

EXPLANATION

(a) In the graph, for each hour passed, the line increases 40 miles vertically,

Hence, the distance increases by 40 miles each hour.

(b) The slope is the ratio between the vertical increase and the horizontal increase:

[tex]m=\frac{\Delta y}{\Delta x}=\frac{\Delta distance}{\Delta time}[/tex]

Hence, the slope is 40.

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