Question on: WAEC Mathematics - 2015
(\begin{array}{c|c}
x & 0 & 1\frac{1}{2} & 2 & 4\
\hline
y & 0 & 5\frac{1}{2} & &
\end{array})
The table given shows some values for a linear graph. Find the gradient of the line
A
1
B
2
C
3
D
4
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Correct Option: B
Ler: (x1, y1) = (0, 3)
(x2, y2) = ((\frac{5}{4}, \frac{11}{2}))
Using gradient, m = (\frac{y_2 - y_2}{x_2 - x_1})
= (\frac{\frac{11}{2} - 3}{\frac{5}{4} - 0})
= (\frac{11 - 6}{2} + \frac{5}{4})
= (\frac{5}{} + \frac{5}{4})
= (\frac{5}{2} \times \frac{4}{5})
= 2
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