You already know how to use inequalities to describe domain and range. If an endpoint is included—shown by a closed dot, such as in the graph to the right—use <= or >= instead of ≤ or ≥ to indicate the number is included. Complete the inequality for the domain.

−4
x
4

the transitive property of equality.

step-by-step explanation:

the correct answer is:

the transitive property of equality.

explanation:

we know that  ∠bcd is congruent to  ∠pbc. we also know that  ∠pbc is congruent to  ∠bad.

we can substitute  ∠bad for  ∠pbc in the first angle congruence statement to give us:

∠bcd is congruent to  ∠bad.

algebraically, the transitive property states if a=b and b=c, then a=c. it basically allows us to substitute equal values. since that is what we did, this is the transitive property.

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the answer is