x
6.20
6.85
7.50
y
3.90
5.20
6.50
The points on a linear graph are as shown in the table. Find the gradient (slope) of the line.
A
2\(\frac{1}{2}\)
B
2
C
1
D
\(\frac{1}{2}\)
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
Gradient = \(\frac{y_2 - y_ 1}{x_2 - x_1}\)
= \(\frac{5.20 - 3.90}{6.85 - 6.20}\)
= \(\frac{1.3}{0.5}\)
= 2
Source: Myschool Past Questions Archive (Record #58365)