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Home > INT2 > Chapter 3 > Lesson 3.2.5 > Problem 3-114


Write the equation of the line that has a slope angle and a -intercept at . Assume the line has a positive slope.

Sketch a graph and a slope triangle.

A second quadrant graph of a slope triangle. The slope angle is 33.7 degrees. A point on the line is (0, comma 7).

Use the tangent ratio to find the slope:

Once you know the slope and the -intercept, you can write the equation of the line. You use slope-intercept form ().