Answer:
y = mx + b
Step-by-step explanation:
Where m is the slope of the line and b is the y-intercept. The y-intercept of this line is the value of y at the point where the line crosses the y axis.
sorry if wrong (answer 23)
y-9=1/2(x-8)
m=(y2-y1)/(x2-x1)
m=(4-9)/(-2-8)
m=-5/-10
m=1/2
y-y1=m(x-x1)
