Answer:
Because there is only one out put for each domain this mapping diagram is a function.
Step-by-step explanation:
Two sets are involved. There is a directional property, the relation is defined from one set called the domain on to another set called the codomain. A function is a relation that has exactly one output for each input in the domain.
Answer:
Ur final grade will go down if you are looking for answers buddy! :)
Step-by-step explanation:
Answer:
C. x =3
Step-by-step explanation:
Extraneous solution is that root of a transformed equation that doesn't satisfy the equation in it's original form because it was excluded from the domain of the original equation.
Let's solve the equation first

Hence, we can conclude that x=3 is an extraneous solution of the equation ..
Answer:
D
Step-by-step explanation
I'd say it's PQR and TSR cause they match up in terms of the order of vertexes, and then you've got the angles of P and T that are in the middle of PR and TR, which are equal, and the sides PQ and TS. The angles are in between the sides.