write an equation in point-slope form for the line through the given point with the given slope. the point 8, negative 3; m equals negative one fourth. a. y plus 3 equals negative one fourth times the quantity x minus 8 end of quantity. b. y minus 3 equals negative one fourth times the quantity x minus 8 end of quantity. c. y minus 3 equals negative one fourth times the quantity x plus 8 end of quantity. d. y minus8 equals negative one fourth times the quantity x plus 3 end of quantity.