~Adapted from Walch Education

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Presentation transcript:

~Adapted from Walch Education Rearranging Formulas ~Adapted from Walch Education

Literal equations are equations that involve two or more variables. Formulas are literal equations that state specific rules or relationships among quantities.

Literal equations and formulas can be solved for a specific variable by isolating that variable. HOW DO WE DO THAT? To isolate the specified variable, use inverse operations.

When coefficients are fractions, multiply both sides of the equation by the reciprocal. You can check if you have the correct reciprocal: The product of a number and its reciprocal is always 1.

The formula for finding the area of a triangle is , where b is the length of the base and h is the height of the triangle. Suppose you know the area and height of the triangle, but need to find the length of the base. In this case, solving the formula for b would be helpful. Practice # 1

We start isolating b by multiplying both sides of the equation by 2.

Next we will divide both sides of the equation by h.

So now we know that The formula for finding the length of the base of a triangle can be found by doubling the area and dividing the result by the height of the triangle.

Solve 4y + 3x = 16 for y. Your Turn, Good Luck!

~DR. DAMBREVILLE Thanks for Watching!!!