Answer:
B. -2
Step-by-step explanation:
To find a slope of a line, you have to identify x and y variables:
- (4, 3) => (x1, y1)
- (2, 7) => (x2, y2).
We use the formula;
m = ∆y/∆x
= (y2 - y1)/(x2 - x1)
Substitute the values into the formula above.
m = (7 - 3)/(2-4)
= 4/-2
= -2
Therefore, the slope of the line is passing through points (4,3) and (2,
7) is -2.
