We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
0
301
1
avatar+43 

Need shown work on how they got these answers! (Confused)

 May 23, 2018
 #1
avatar+7705 
+1

Minimum value of f(x) = |0| - 4 = -4

Maximum is +infinity.

Therefore the range of f(x) is [-4,+infinity).

And the graph looks like this: https://www.desmos.com/calculator/y2wyt5oh1u

 

g(x) = x^2 + 2x - 3 = (x+1)^2 - 4

Min value of g(x) also equals -4, and max value is also +infinity.

Therefore g(x) is one of the answers.

 

k(x) = sqrt(x) - 4.

Min value = sqrt(0) - 4 = -4

Max value is also +infinity.

Therefore k(x) is the other answer.

 

 And the graphs of g(x) and k(x) look like this: https://www.desmos.com/calculator/sjurr0goyx

 May 24, 2018

5 Online Users