Answer:
q10, vertically opp angles
q11, corresponding angles
Step-by-step explanation:
Topic: angle properties
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They cancel out, so you can decide from this 10x-20=10x-20.
Hope this answer will help!
Answer:

Step-by-step explanation:
An equation in the vertex form is written as

Where the point (h, k) is the vertex of the equation.
For an equation in the form
the x coordinate of the vertex is defined as

In this case we have the equation
.
Where

Then the x coordinate of the vertex is:

The y coordinate of the vertex is replacing the value of
in the function

Then the vertex is:

Therefore The encuacion excrita in the form of vertice is:

To find the coefficient a we substitute a point that belongs to the function 
The point (0, -1) belongs to the function. Thus.


<em>Then the written function in the form of vertice is</em>

Answer: They were not correct it was bigger by 2.5 so the people were wrong