Answer:
the number is 3
Step-by-step explanation:
x-15=-12
+15 +15
x=3
No. No regular hyperbola is a function
-12 and 4
-12 x 4 = -48
-12 + 4 = -8
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death 12
------------ = ----
disabling 14
f(x)=7x+11
15-4-7x= 7x+11. Sp y or f(x)= 7x+11