# Find the Exponential Function Given a Point (-1,1/10)

To find an exponential function, , containing the point, set in the function to the value of the point, and set to the value of the point.
Solve the equation for .
Rewrite the equation as .
Rewrite the expression using the negative exponent rule .
Multiply the numerator of the first fraction by the denominator of the second fraction. Set this equal to the product of the denominator of the first fraction and the numerator of the second fraction.
Solve the equation for .
Rewrite the equation as .
Multiply by .
Multiply by .
Substitute each value for back into the function to find each possible exponential function.
Find the Exponential Function Given a Point (-1,1/10)