Answer:
slope: -1
Step-by-step explanation:
In slope-intercept form: y = mx + b, the slope is represented by the variable "m".
In other words, the slope is the coefficient of the variable x in a linear equation. Knowing this, the slope of y = -x would be the coefficient of x which is -1.
The 1 isn't shown because -1x is the same as -x, just like how 1x is the same as x.
The slope of y = -x is -1.
