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9-12 Integrated Math 1 Unit 5 Lesson 10

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K-5 Math 6-8 Math •9-12 Math

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Unit 5, Lesson 10

Lines in Triangles

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Integrated Math 1

Practice

Problem 1

The three lines and intersect at point . Find the coordinates of . Verify algebraically that the lines all intersect at .

Problem 2

ForLesson 9: Classifying with Slope

A quadrilateral has vertices and . Mai thinks the quadrilateral is a rhombus and Elena thinks the quadrilateral is a square. Do you agree with either of them? Show or explain your reasoning.

Problem 3

ForLesson 7: It’s All on the Line

For each equation, is the graph of the equation parallel to the line shown, perpendicular to the line shown, or neither?

<p>Decreasing line that goes through the point 0 comma 1.</p>

Problem 4

ForLesson 4: Equations of Lines

Write two equivalent equations for a line with -intercept and -intercept .