CHAPTER 1 1-6 SOLVING FOR A VARIABLE. OBJECTIVES STUDENTS WILL BE ABLE: Solve a formula for a given variable. Solve an equation in two or more variables.

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Presentation transcript:

CHAPTER SOLVING FOR A VARIABLE

OBJECTIVES STUDENTS WILL BE ABLE: Solve a formula for a given variable. Solve an equation in two or more variables for one of the variables.

1-6 S OLVING FOR A VARIABLE What is solving for a variable? Answer: It means that we rearrange a formula by inverse operations so we can isolate the requested variable. What is a formula? Answer: formula is an equation that states a rule for a relationship among quantities. An example of this can be: Athletes competing on racing. This athletes can rearrange the distance formula(d=r*t) to find get the time it took to finish the race.

S TEPS FOR SOLVING VARIABLES Solving for a Variable Step 1 Locate the variable you are asked to solve for in the equation. Step 2 Identify the operations on this variable and the order in which they are applied. Step 3 Use inverse operations to undo operations and isolate the variable.

E XAMPLE 1

E XAMPLE 1 CONTINUE

E XAMPLE 2

E XAMPLE 3

E XAMPLE 4

E XAMPLE 5

E XAMPLE 6 Solve A = ( 1 / 2 ) ah – ( 1 / 2 ) bh for h Solution:

S TUDENT G UIDE Do odd problems from page 52

H OMEWORK Do even problems from page 52

C LOSURE Today we saw how to solve for a specific variable in an equation. Tomorrow we are going to continue with 1-7