What is the equation of a line with slope -3 and goes through point (2,-4)?

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60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums, 28 play drums, 18 play the guitar. what is the probability that the applicant who gets the job plays drums or guitar?

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585