Question

Is this equation x=4y+3 in function form? Explain your answer

Answer 1

The function for is:

$y=f(x)$

A function is a process or a relation that associates each element x to a single element y. x is the independent variable and y is the dependent variable. Normally if you write a function, you isolate the dependent variable.

$x=4y+3$

This function is not in function form, as you can see the dependent variable y isn't isolated. A correct way would be:

$y=\frac{x-3}{4}$