Is -x + 4y=5 in Standard form of a Linear Function or not?

Yes, it is in Standard Form.

Step-by-step explanation:

A linear function in Standard Form would look like:

Ax + By = C

where A, B, and C are real numbers.

A good way to check if a linear function is in Standard Form is by checking if the only the variables and coefficients found on one side of the equation and a real number is found by itself on the other side.

The linear function, -x + 4y = 5, has only the variables and coefficients on the left side of the function, and a real number (5) by itself on the right side.

The linear function, -x + 4y = 5, is in Standard Form.

I hope this helps. :)