The slope of the graph of a direct variation function is -3. which of the following is true?

A

Step-by-step explanation:

We know that ∠ ≅ ∠ because they are vertical angles, so that's one pair of congruent angles. However, we can't compare ∠ and ∠ as they have different measures, so we'll have to find the measure of either ∠ or ∠. Let's go with the former. Using the fact that the sum of the measures of the interior angles of a triangle is °, we know that ∠°. Now, we know that ∠ ≅ ∠ because their measures are equal. That's another pair of congruent angles. Therefore, the angles are similar by . Hope this helps!