Using the formula sheet Equations typically contain one or more letters These letters are called variables Variables : an unknown in an equation EXAMPLE:

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Presentation transcript:

Using the formula sheet Equations typically contain one or more letters These letters are called variables Variables : an unknown in an equation EXAMPLE: what is y when x = 2 in the equation y = 3x + 5 y = 3(2) + 5 = = 11

Use the formula sheet just like a word equation! Basic steps for using formulas – Circle the question – Match question with formula on formula sheet – Make a fact box of the variables in the formula – Organize variables within formula – Plug and chug – solve for the question – Report final answer with correct units

Practice Problems Find the area of the triangle  Basic steps for using formulas Circle the question Match question with formula on formula sheet Make a fact box of the variables in the formula Organize variables within formula Plug and chug – solve for the question Report final answer with correct units 32 in 28 in 56 in

Practice Problems Find the circumference of the circle  Basic steps for using formulas Circle the question Match question with formula on formula sheet Make a fact box of the variables in the formula Organize variables within formula Plug and chug – solve for the question Report final answer with correct units 4.6 m

Practice Problems Find the perimeter AND area for the shape below  Basic steps for using formulas Circle the question Match question with formula on formula sheet Make a fact box of the variables in the formula Organize variables within formula Plug and chug – solve for the question Report final answer with correct units 6 m 5 m 3 m 4 m 3 m

Practice: Which shape has an area of 70.8

QUIZ: Find the area of both shapes below: record answer with correct units (2 points per problem)