The equation be showing the relationship between the total cost and the hours is:
c = 40h + 650
A linear equation is given by:
y = mx + b;
where y, x are variables, m is the slope of the line and b is the y intercept.
Let c represent the total cost and h represent the hours.
Since the painter charges $40 an hour, hence m = 40. Also he purchased for $650, hence b = 650. The equation be comes:
c = 40h + 650
The table that represent this is the last table and it is attached.
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