The equation to represent the given function machine is y = 6x + 4.
The given function machine takes an input, multiplies it by 6, and then adds 4 to the result. The output of this function is 7.
To represent this function as an equation, let's let x be the input value. The equation will be:
y = 6x + 4
Where y represents the output value. So when x = 7, we can substitute it into the equation to find the value of y:
y = 6(7) + 4 = 46