The x-axis.
In the form Y = mx + b
m is the slope, so no slope means that my is zero so that means x is zero also.
So you would end up with
y = b so that means y will always be that value and the only thing that will change is the x value. This will create a horizontal lines that is parallel to the x-axis
so since Mrs Jackson used 2/15 of 7/8, the amount she used is simply their product.

42/7=6 i believe is what you are looking for
Answer:
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Step-by-step explanation: