Answer:
3.5
Step-by-step explanation:
To evaluate the expression with the given value of y, substitute that given value for every y in the expression. So, since y = 6.8, substitute each y for 6.8 and solve like so:
[tex]\frac{(-y+4)}{(-y+6)} \\= \frac{(-(6.8)+4)}{(-(6.8)+6)} \\= \frac{(-6.8+4)}{(-6.8+6)} \\= \frac{-2.8}{-0.8} \\=3.5[/tex]
Thus, the answer is 3.5.
