Problem: a line that passes through ( – 1 , – 4 ) and ( 2 , k ) has a slope = k . what is the value of k ?
Rationale: "slope = ( y 2 - y 1 ) / ( x 2 - x 1 ) = > k = ( k + 4 ) / ( 2 + 1 ) = > 3 k = k + 4 = > k = 2 ans d it is !"
annotated_formula: divide(4, 2)