Question

Write the equation for each line

Answer 1

y = -x

Explanation:

We can use two points on the line to write the equation.

Using ( 0,0) and (2,-2), we can find the slope.

m = ( y2-y1)/(x2-x1)

= ( -2-0)/(2-0)

= -2/2

= -1

The y intercept is 0.

y = mx+b where m is the slope and b is the y intercept.

y = -x+0

y = -x