If you want to show that the slope of the line passing through points U, S, X, and Z is constant, why is it important to know if △STU and △XYZ are similar?

Select the answer that is completely correct.

1.It's important to know if △STU and △XYZ are similar because the corresponding sides of similar triangles are proportional. That means that the slope of SU¯¯¯¯¯¯¯ can be shown to be equal to the slope of XZ¯¯¯¯¯¯¯¯.

2It's important to know if △STU and △XYZ are similar because the corresponding sides of similar triangles are equal. That means that the slope of SU¯¯¯¯¯¯¯ can be shown to be equal to the slope of XZ¯¯¯¯¯¯¯¯.

3.It's important to know if △STU and △XYZ are similar because the corresponding sides of similar triangles are proportional. That means that the measure of SU¯¯¯¯¯¯¯ can be shown to be equal to the measure of XZ¯¯¯¯¯¯¯¯.

4It's important to know if △STU and △XYZ are similar because the corresponding sides of similar triangles are equal. That means that the measure of SU¯¯¯¯¯¯¯ can be shown to be equal to the measure of XZ¯¯¯¯¯¯¯¯.