What is the y intercept of f(x)=4-5x
a. -5
b. -4
c. 4
d. 5

Ineed i been stuck on this question since yesterday

The american academy of pediatrics wants to conduct a survey of recently graduated family practitioners to assess why they did not choose pediatrics for their specialization. provide a definition of the population, suggest a sampling frame, and indicate the appropriate sampling unit.

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