Respuesta :
To finding the slope you create a fraction using the difference of the y values (2nd numbers in each pair) over the difference of the x values (1st numbers in each pair).
So, (4-1)/(4 - -2). This is 3/6 which simplifies to 1/2, your 3rd answer.
So, (4-1)/(4 - -2). This is 3/6 which simplifies to 1/2, your 3rd answer.