The opposite of the opposite of-1.4 is -1.4
They can’t be similar. Similar triangles have congruent corresponding angles, and two angles are given on each. Neither of those correspond to another on the opposite triangle. Basically, there’s no way to have three congruent angles, so they aren’t similar.
Significant figures are numbers after the decimal point, which have usually been rounded. There are four numbers after the decimal point, so there are 4 significant figures.
:)
Answer: The slope is 
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Step-by-step explanation:
1. You set up your Slope Formula 
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2. Substitue your points into the formula.
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3. Once you substitute, you will solve the equation
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4. Simplify the equation if you have to 
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