In order use the slope- intercept formula you must solve for what variable?

Y

The slope intercept formula is one of many different expressions that define a line. The general formula for a line is

ax + by + c = 0

To change the expression to the slope intercept form, you solve for y like this:

ax + by + c = 0

Subtract ax from both sides

by + c = -ax

subtract c from both sides

by = -ax - c

divide both sides by b

y = -(a/b)x - c/b