Answer:
2
Step-by-step explanation:
To solve the question, substitute x= -2 and y= 6 into the given expression before simplifying it.
When x= -2, y= 6,
[tex] \frac{20 - {x}^{2} }{y - x}[/tex]
[tex] = \frac{20 - ( - 2) {}^{2} }{6 - ( - 2)} [/tex]
[tex] = \frac{20 - 4}{6 + 2} [/tex]
[tex] = \frac{16}{8} [/tex]
= 2
