What is the $x$-intercept of the graph of $y = (45 - x) / (ax + b)$ i…

Question

Prompt

What is the

x

-intercept of the graph of

y = (45 - x) / (a x + b)

in the

x y

-plane, where

a

and

b

are positive constants?

(- b / a, 0)

(0, 45/ b)

(0, - 45)

(45, 0)