What is the x intercept of y=-1.4x-1

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? )

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.

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