Respuesta :
Hi, it is well simples!
Look :
a = Delta(y)/Delta(x)
Where,
Delta(y) = yf - yi
Delta(x) = xf - xi
_______________
As yi = 4 and yf = 1
And
xi = -3 and xf = 2
Then,
a = (1-4)/(2-(-3))
a = (-3)/(2+3)
a = -3/5
Look :
a = Delta(y)/Delta(x)
Where,
Delta(y) = yf - yi
Delta(x) = xf - xi
_______________
As yi = 4 and yf = 1
And
xi = -3 and xf = 2
Then,
a = (1-4)/(2-(-3))
a = (-3)/(2+3)
a = -3/5