QUESTION IMAGE
Question
choose a possible sketch of the graph of ( y = \frac{4}{x} ) and ( y = \frac{x - 1}{x + 3} ) to demonstrate that there are two points of intersection.
a.
graph a
b.
graph b
c.
graph c
d.
graph d
Step1: Identify first function
$y=\frac{1}{x}$ is a hyperbola with branches in Q1/Q3, asymptotes $x=0,y=0$.
Step2: Identify second function
Rewrite $y=\frac{x-1}{x+3}=1-\frac{4}{x+3}$. This is a hyperbola shifted left 3, up 1, asymptotes $x=-3,y=1$.
Step3: Find intersection points
Set $\frac{1}{x}=1-\frac{4}{x+3}$. Cross multiply:
$x+3 = x(x+3)-4x$
$x+3 = x^2+3x-4x$
$x^2-2x-3=0$
Factor: $(x-3)(x+1)=0$, so $x=3,x=-1$. Two real solutions, meaning two intersection points.
Step4: Match to graph
Only option A shows two distinct intersection points between the two curves.
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A. <The graph with two distinct intersection points between the two curves>