Question

HELP:What is the equation of a line that has a slope of −2and passes through the point (−1,−1)

Answer 1

y = -2x - 3

Explanation:

The line has a slope of -2

The line passes through point (-1, -1)

Lets take another point (x, y) on the line,

Slope = change in y ÷ change in x

i.e slope =
`(y - -1)/(x - -1)` = -2

`(y + 1)/(x + 1)` = -2

y + 1 = -2x - 2

y = -2x - 2 - 1

y = -2x - 3 (this is the equation of the line).