The first one is -4 and the second one is 6.
Answer:
4) slope= 0
5) 
Step-by-step explanation:

4) Slope


= 0
The slope is zero as the line is a horizontal line (since both points have the same y-coordinate of 10).
5) Slope



Since you have taken (x₁, y₁) to be (9, 4), the value of x₁ should be 9 instead of 2.
Answer:
D. Reflexive Property
Explanation:
In order to prove that segment AB is congruent to segment ED, you need to first prove that triangle ACB is congruent to triangle ECD.
Reflexive property is not used as a reason to prove since no angles or segments are shared.
Hope this helps!!
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