SOLUTION: {{{f(x)=system( matrix(2,3,-2x-2,"if",x<4,-4x+5,"if",x>=4) )}}} Determine {{{f(3)}}} a. -3 b. -6 c. -8 d. -14

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Question 160176:
Determine
a. -3
b. -6
c. -8
d. -14
Answer by Edwin McCravy(20056)   (Show Source): You can put this solution on YOUR website!

Determine
a. -3
b. -6
c. -8
d. -14
 
Look inside the parentheses of ""

What is in there?  Answer: 3

Look inside the parentheses of ""

What is in there?  Answer: x

What does that mean?  Answer: That x is this problem is 3.

Is 3 less than 4 or is 3 greater than or equal 4?  
Answer: 3 is less than 4

Since x, which is 3, is less than 4, then what does this  
tell you to use,  or ? Answer: 

How do you substitute 3 for x into ?  
Answer: 

Then what is the final answer?  Answer: -8.

Edwin
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