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Home > GC > Chapter 3 > Lesson 3.1.3 > Problem 3-30

3-30.

Examine the graph of line below. 3-30 HW eTool (Desmos). Homework Help ✎

  1. Find the equation of .

    Identify the slope and -intercept from the graph and use the equation  to write the equation of the line.

  1. Find the area and perimeter of .

    The area of a triangle is ()(height)(base).
    Find the length of the hypotenuse by using the given leg lengths and the Pythagorean Theorem.

  1. Write an equation of the line through A that is perpendicular to .

    The slope of a perpendicular line is negative the reciprocal of the original line.

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