waecmaths question:
The table below satisfies the relation $y=k\sqrt{x}$ , where k is a positive constant. Use it to answer 18 and 19
|
x |
1 |
4 |
p |
|
y |
0.5 |
1 |
2.5 |
Find the value of p
Option A:
2
Option B:
4
Option C:
10
Option D:
25
waecmaths solution:
$\begin{align} & 25=0.5\sqrt{x} \\ & \sqrt{x}=\frac{2.5}{0.5} \\ & \sqrt{x}=5 \\ & x=25 \\\end{align}$
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