Chapter B, Problem 61E

$\left(a\right)$

To determine

Show that if $x-$ and $y-$ intercepts of a line are non-zero numbers $\left(a\right)$ and $\left(b\right)$ , then the equation of the line can be put in the form $\frac{x}{a}+\frac{x}{b}=1$ .

$\left(b\right)$

To determine

Use part $\left(a\right)$ to find the equation of the line whose $x-$ and $y-$ intercepts are non-zero numbers $6$ and $-8$ respectively.