Algebra II: 1001 Practice Problems For Dummies (+ Free Online Practice). Mary Jane Sterling

      158.

      159.

      160.

      161.

      162.

      163.

      164.

      165.

      166.

      167.

      168.

      169.

      170.

      171.

      172.

      173.

      174.

      175.

      176.

      177.

178.

      179.

      180.

Solving Radical Equations with Multiple Radical Terms

       181–190 Solve the radical equations involving two or more radical terms.

      181.

      182.

      183.

      184.

      185.

      186.

      187.

      188.

      189.

      190.

Chapter 4

      Graphs and Equations of Lines

      Lines are graphs of linear expressions. When graphing lines or writing their equations, you have the slope intercept form, , or you can use the point-slope form, .Slopes of parallel lines are equal in value, and slopes of perpendicular lines are negative reciprocals of one another.

The Problems You’ll Work On

      In this chapter, you’ll work with the graphs and equations of lines in the following ways:

       Graphing a line given a point and a slope

       Graphing lines given two points

       Graphing a line parallel or perpendicular to a particular line

       Writing the equation of a line given a point and a slope

       Writing the equation of a line given two points

       Writing the equations of lines either parallel or perpendicular to a given line

What to Watch Out For

      Don’t let common mistakes like those that follow trip you up when working with the graphs and equations of lines:

       Drawing a line with a positive slope rather than a negative slope

       Not using the slope formula correctly when inserting the coordinates of points

       Forgetting to change the sign when determining the slope of a line perpendicular to a given line

       Distributing incorrectly when simplifying the point-slope form

Sketching Lines Using a Point and Slope

       191–210 Sketch a graph of the line described.

      191. Through (3, 2) with

      192. Through (–2, –3) with

      193. Through (0, 3) with

      194. Through (3, –2) with

      195. Through (1, 3) and parallel to the line

      196. Through (5, 1) and parallel to the line