Question

What is the slope of the line that passes through the points (4,3) and (2,7)

Answer 1

Y=mx+b
4m+b=3
2m+b=7
4m+b-2m-b=-4
2m=-4
m=-2
4(-2)+b=3
-8+b=3
b=11
The slope of line: Y=-2x+11
That's your answer, lovely~