Of your answers, the first one is correct. There are two right triangles in the graph, ABC and A'B'C'. However, only A'B'C' is listed.
The factors of the expression are 
<h3>How to find factors in the expression?</h3>
First group the first two terms and the last two terms together respectively.
The factors of the expression are given by;

Hence, the factors of the expression are
.
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Answer:


B) 15
D) 420
Sorry C I don't know.. Xd
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The answer is 0 because the formula to finding a slope from two different points are y1-y2/x1-x2 (meaning as a fraction) in this case, the answer is 0/5, which is equivalent to 0
2 I believe I’m not 100% sure tho