Answer:
- slope: -3
- equation: y = -3x +5
Step-by-step explanation:
The slope formula can be used with the marked points.
m = (y2 -y1)/(x2 -x1)
m = (-1 -2)/(2 -1) = -3/1 = -3
The graph apparently intersects the y-axis at y=5, so the slope-intercept equation is ...
y = mx +b . . . . . . . line with slope m and y-intercept b
y = -3x +5
