In the graph, the amount of sales tax (t) is proportional to the price (p) of an item.
1 answer:
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Answer:
slope is undefined
Step-by-step explanation:
Calculate the slope m using the slope formula
m =
with (x₁, y₁ ) = (1, 2) and (x₂, y₂ ) = (1, - 3)
m = =
Since division by zero is undefined then the slope of the line is undefined
