An equation that defines y as a function of x is given a Solve for y in terms of x and replace y with the function notation f x b Find f 3 4x 2y 1 a Solve for y in terms of x and replace y with the function notation f x f x 4x 1 2 b Find f 3 f 3 Use integers or fractions for any numbers in the expression Type an integer or a fraction