Answer:
The first one would be corresponding angles postulate and the second one is linear pair postulate.
Step-by-step explanation:
Answer:
C. Distributive property
Step-by-step explanation:
Distributive property says that

Consider left part of the expression

By distibutive property,

<span>y= 2x ^2 - 8x +9
</span>y = a(x - h)2 + k, where (h, k) is the vertex<span> of the parabola
</span>so
y= 2x ^2 - 8x + 9
y= 2x ^2 - 8x + 8 + 1
y = 2(x^2 - 4x - 4) + 1
y = 2(x - 2)^2 + 1 ....<---------<span>vertex form</span>