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19. Roderick, whose favorite subject is Mathematics is asked by her teacher to write the equation 15x + 5y = -35 in slope-intercept form. He answered by -15x - 7. Is Roderick correct? A. Yes, because he loves mathematics. B. No, because the term -15x must be positive. C. Yes, because it is already the simplified answer. D. No, because the simplified answer must be y = -3x - 7.​