Gabrielle hires someone to fix her busted pipes under her floor. She is told that she will be charged an initial service fee and $45 per hour. Her bill was $825 after 15 hours of work. Write a linear equation representing the total she has to pay based on the hours worked. Determine the amount of the initial service fee. Create a table of values for at least 5 points of data. Graph the information and be sure to include labels.

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step-by-step explanation:

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- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."