2.3 Solving Literal Equations for a Variable

 MAFS.912.A- CED.1.4 Rearrange formulas to
highlight a quantity of interest, using the same
reasoning as in solving equations. For
example, rearrange Ohm’s Law V = IR to
highlight resistance R.
MAFS.912.A-REI.2.3 Solve linear equations
and inequalities in one variable, including
equations with coefficients represented by
letters.
Rewrite y = 3x + 3z to solve for z. Standard: MAFS.912.A-­‐CED.1.4 Text: 2.3 Skill: Solving Literal Equations for a Variable Date: Essential Question: How do you solve a literal equation for one of its variables? Questions/ Key Ideas: *Literal Equation:: EX: solve cx – 10 = -­‐5 for c. EX: Solve Boyle’s Law p1V1 = p2V2 for V2. Common Formulas for Geometry Formula Name Formula Perimeter of a rectangle P = 2l + 2w Circumference of a circle C = 2πr Area of a rectangle A = lw Area of a triangle A = ½ bh Area of a circle A = πr2 P = perimeter l = length w -­‐ width C = Circumference A = Area Conclusion: r = radius b = base