m = (200 - 120)/(4 - 2)

m = 80/2

m = 40

**y = 40x + 40 **

Chrissy B.

asked • 03/05/19A plumber charges $40 set fee for each job plus an hourly rate. The table below shows t, the total charge, in dollars for a job that last h hours.

hours work total charge

h t

2 $120

4 $200

7 $320

9 $400

which equation models the relationship between h and t?

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m = (200 - 120)/(4 - 2)

m = 80/2

m = 40

**y = 40x + 40 **

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