Answer:
y=-x
Step-by-step explanation:
y=mx+b
m:slope
b: y-intercept
The slope is how steep the line is. The formula to find the slope with 2 coordinate pairs is [tex]\frac{x_{2}-x_{1} }{y_{2}-y_{1} }[/tex]
for this, it would be:
[tex]\frac{7-0}{-7-0}=[/tex]
[tex]\frac{7}{-7} =\\-1[/tex]
so the slope is negative one, this can be written as -x
The y-intercept is the point where x is 0 (this is where it crosses the y-axis). In this situation the y-intercept is 0, so you don't have to write it
