Question

How do you find the slope of a line `2x + 4y = -2`?

Answer 1

See a solution process below:

Explanation:

This equation is in Standard Linear Form. The standard form of a linear equation is: `color(red)(A)x + color(blue)(B)y = color(green)(C)`

Where, if at all possible, `color(red)(A)`, `color(blue)(B)`, and `color(green)(C)`are integers, and A is non-negative, and, A, B, and C have no common factors other than 1

`color(red)(2)x + color(blue)(4)y = color(green)(-2)`

The slope of an equation in standard form is: `m = -color(red)(A)/color(blue)(B)`

Substituting gives:

`m = -color(red)(2)/color(blue)(4) = -1/2`