Answer is
(Questions 1 - 4) you need to put these in standard form.
standard form of a linear equation is Ax+By=C. To change an equation written in slope-intercept form (y=mx+b) to standard form, you have to get the x and y on the same side of the equal sign and the constant on the other side. Use inverse (opposite) operations to move terms.
Example (#1) y = 6x -4
Subtract 6x from both sides
-6x + y = -6x + 6x -4
Combine terms
-6x + y = -4 is standard form
(Questions 5 - 10)
These you need in slope intercept form
y = mx + b
#5 is already correct, all you have to do is graph it.
y = -5/6x + 4
Your y intercept is 4, from there slope is -5/6 or coordinates ( 6, -5) from y intercept.
I did a print screen with a few examples.
It looks like you did slope intercept form on #2 instead of standard form.
you got this!