中等MATH-GEOM-001
What is the slope of the line through (1, 2) and (4, 8)?
A. 1/2
B. 3
C. 2✓ 答案
D. 6
解說
(8 − 2)/(4 − 1) = 6/3 = 2. The value 1/2 is the reciprocal. The value 6 is the change in y before it is divided by the change in x.
(8 − 2)/(4 − 1) = 6/3 = 2. The value 1/2 is the reciprocal. The value 6 is the change in y before it is divided by the change in x.