SOLUTION: let f(x)=7 if x <_ -3 f(x)=x+1 if -3< x <_ 4 f(x)=-2 if x > 4 evaluate and graph f(-6) please explain

Algebra ->  Rational-functions -> SOLUTION: let f(x)=7 if x <_ -3 f(x)=x+1 if -3< x <_ 4 f(x)=-2 if x > 4 evaluate and graph f(-6) please explain       Log On


   

Question 187775: let f(x)=7 if x <_ -3
f(x)=x+1 if -3< x <_ 4
f(x)=-2 if x > 4
evaluate and graph f(-6)
please explain
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Remember, f(-6) means that we want to find f(x) when x=-6

Since -6%3C=-3, this means that this x value falls in the first interval x%3C=-3

This means that the function we'll use is f%28x%29=7

It turns out that no matter what x value we plug into f%28x%29=7, the result is ALWAYS 7


So f(-6)=7 which means that the point (-6,7) is on the graph.


Here's what the graph should look like: