Do Now (7.4 Practice): Graph. Determine domain and range.

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Presentation transcript:

Do Now (7.4 Practice): Graph. Determine domain and range.

Algebra II 7.6: Solve Exponential and Logarithmic Equations HW: tonight: p.543 (2-8 even, all) Monday: 7.6: p (4-14 even, even) Test: Wednesday, 3/4

7.5: Change-of-base Formula

Use the change-of-base formula to evaluate the logarithm.

Property of Equality for Exponential Equations

Solve the equation. (Type 1) If the equation is a log = log with the same base, make the expressions equal and solve. 4x – 7 = x + 5 3x = 12 x = 4

Solve the equation. (Type 1)

Algebra II 7.6: Solve Exponential and Logarithmic Equations HW: 7.6: p (4-14 even, even) Test: Wednesday, 3/4

Solve the equation. (Type 2) If the equation is a log = number, then write as a power.

Solve the equation. (Type 2)

Solve the equation. (Type 3) Rewrite the equation so that the powers have the same base. When the equation is a power = power with the same base, make the exponents equal and solve.

Solve the equation. (Type 3)

Solve the equation. (Type 4) If the equation is a power = number, then rewrite as a log. Solve equation using log rules. (change of base)

Solve the equation. (Type 4)

Do Now (7.6): Solve the equation.