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How do you solve an exponential equation of the form ?
Take the logarithm of both sides with base a: . Or, take the natural logarithm:
How do you solve a logarithmic equation of the form ?
Rewrite the equation in exponential form: .
Steps to solve: ?
- Use product rule: . 2. Convert to exponential form: . 3. Solve the quadratic equation. 4. Check for extraneous solutions.
Steps to solve:
- Since the bases are equal, set the exponents equal to each other: . 2. Solve for x. 3. Check for extraneous solutions.
Steps to solve: ?
- Take the logarithm of both sides (either base a or natural log). 2. Solve for x. 3. Check for extraneous solutions.
Steps to find the inverse of ?
- Swap x and y: . 2. Isolate the exponential term: . 3. Take the natural log: . 4. Solve for y: .
Steps to find the inverse of ?
- Swap x and y: . 2. Isolate the log term: . 3. Convert to exponential form: . 4. Solve for y: .
What is an extraneous solution?
A solution that emerges from the process of solving a problem but is not a valid solution to the original problem.
Define the inverse of a function.
A function that reverses the effect of another function. If f(a) = b, then f⁻¹(b) = a.
What is a logarithmic function?
The inverse function of an exponential function, expressing the power to which a base must be raised to produce a given number.
What is an exponential function?
A function in which the independent variable appears in the exponent.
What is the product rule for logarithms?
What is the quotient rule for logarithms?
What is the power rule for logarithms?
What is the change of base formula for logarithms?
General form of exponential function with transformations
General form of logarithmic function with transformations
Inverse of exponential function
Inverse of logarithmic function