Think About It Consider the system of equations (a) Find values for and so that the system has one distinct solution. (There is more than one correct answer.) (b) Explain how to solve the system in part (a) by the method of substitution and graphically. (c) Write a brief paragraph describing any advantages of the method of substitution over the graphical method of solving a system of equations

Inverse functions: 3 2 x has an inverse, but x does not Horizontal line test: o A function is one-to-one if no horizontal line intersects y=f (x) more than once o If a function is one-to-one, the function has an inverse f ( f (x))=x f−( f (x))=x 2 To find the inverse of f x)=x , we need to restrict the domain to x ≥0 so that it becomes one-to-one, only 2 when the domain is restricted is the inverse of x equal to √x To graph y=f −1x) , Reflect the graph of y= f