# How do you find the slope and y intercept of y= -9x?

Aug 12, 2016

Slope as $- 9$ and intercept on $y$-axis is $0$.
An equation in slope-intercept form is written as $y = m x + c$, where $m$ is slope and $c$ is its intercept on $y$-axis.
Hence, if one writes a linear equation as a function of $y$, one can easily get slope which is coefficient of $x$ and intercept, which is constant term.
As $y = - 9 x$ is already in this form, we have its slope as $- 9$ and intercept on $y$-axis is $0$, that is it passes through origin.