A formula is a type of equation that usually conveys some fundamental principle. For example, the formula for the distance, or the formulas for a perimeter and an area of a circle, square, etc. Formulas usually have many variables that stand in for unknown quantities. To solve a formula, we isolate the desired variable on one side of the equal sign. To do this we use the same process we saw with solving linear equations. With formulas, the solution may still contain many variables. It can then be substituted into the original to see if it creates a true statement.
*These practice questions are only helpful when you work on them offline on a piece of paper and then use the solution steps function to check your answer.
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.