3 is b also. unless you arent allowed to use the same one twice

restrict the domains of quadratic functions and absolute value functions, because these functions are

functions. For instance, the quadratic function f(x) = x^2 pairs both −2 and 2 with 4, and the absolute value function f(x) = |x| pairs both −2 and 2 with 2.
Linear functions (excluding constant functions) and exponential functions are

functions, so their domains

to be restricted.
_________________
An absolute value function, without domain restriction, has an inverse that is NOT a function.
In order to guarantee that the inverse must also be a function, we need to restrict the domain of the absolute value function to make it a one-to-one function.
false because when u connect the dots it does not make a straight line that goes thru the origin
Answer:
area = 54 mi²
Step-by-step explanation:
1 in = 3 mi
1 in x 1 in = 3 m²
3 mi²
18 in² = --------
1 in²
area = 18 * 3
area = 54 mi²