What is the numerical value of the following expression?

Explanation

1. Substitute 3 for x and for -4 for y
   • \(\frac{\left(y-0\right)}{\left(x-\left(-1\right)\right)} =\frac{\left(-4-0\right)}{\left(3-\left(-1\right)\right)}\)
2. In the denominator, do the subtraction 3 - (-1) = 3 + 1 = 4.
   • \(\frac{-4}{4}\)
3. Do the division
   • -1