Calculate the slope of the line that goes through the points (-15,70) and (5,10)

What numbers are included in the set of integers? what numbers are not included?

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Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )