Question

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

Answer 1

Slope as `-9` and intercept on `y`-axis is `0`.

Explanation:

An equation in slope-intercept form is written as `y=mx+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=-9x` is already in this form, we have its slope as `-9` and intercept on `y`-axis is `0`, that is it passes through origin.