Question

Y varies inversely with x, y = 4 and x = 3, what is y, when x = 2B) given: y = 2x - 1 (x-3)(x+1) what is the I. VAII. HA III. X-INTERCEPT

Answer 1

SOLUTION

(a)

$\begin{gathered} y\alpha\frac{1}{x} \\ \\ y=\frac{k}{x} \\ \\ 4=\frac{k}{3} \\ \\ k=12 \end{gathered}$$\begin{gathered} y=\frac{12}{x} \\ \\ when\text{ x=2} \\ \\ y=\frac{12}{2} \\ \\ y=6 \end{gathered}$