SOLUTION: What is the graph of the rational function? y = 2x +4 ===== x + 1

Question 625650: What is the graph of the rational function?
y = 2x +4
=====
x + 1

Answer by reynard2007(52) (Show Source): You can put this solution on YOUR website!

In solving problems like this, you have to find the following:

x-intercept/s: This is where the graph touches the x-axis. For that to happen, y must be equal to zero. So, you have to solve for x and make the expression equal to 0

-->The x-intercept is at point (-2,0)

y-intercept/s: This is where your graph touches the y-axis. Here x must be the one equal to zero.

--> The y-intercept is at point (0,4)

critical value/s: For a rational function, this is where the value of the denominator is zero making the whole expression undefined.
--> This is a line where the graph breaks.
Plot these points and some more using values of x near the left and right of the critical value.
The graph of is below:

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