. Find the limits lim (𝑥,𝑦)→(2,−4) 𝑦+4 𝑥 2𝑦−𝑥𝑦+4𝑥 2−4�
We need to find "lim(x,y)\\to" "(2,-4)" "\\frac {(y+4x)} {(2y-xy+4x)}"
We will do direct substitution to find the limit .
"=" "\\frac{(-4+4(2))} {(2(-4)-2(-4)+4(2))}"
"=\\frac {(-4+8)} {(-8+8+8)}"
"=\\frac 4 8" "=\\frac 1 2" (ans)
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