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Graph  f(x)=2x+1 and  g(x)=−x+4 on the same coordinate plane.

What is the solution to the equation  f(x)=g(x) ?

x= ?

 

 

The table shows values for functions  f(x) and  g(x) .

What is the solution to  f(x)=g(x) ?

Select each answer

a. x= -2

b. x= -1

c. x= 0

d. x= 1

e. x= 2

 

 

Let  ​f(x)=−3/2x and  g(x)=(1/2)x−1  

Graph the functions on the same coordinate plane.

What are the solutions to the equation  f(x)=g(x) ?

x = ___ or x= ___

 
Guest Jan 9, 2018
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6+0 Answers

 #1
avatar+506 
+2

Graph  f(x)=2x+1 and  g(x)=−x+4 on the same coordinate plane.

 

As shown they're equal when x = 1 

 

What is the solution to  f(x)=g(x) ?

Select each answer

a. x= -2

b. x= -1

c. x= 0

d. x= 1

e. x= 2

c and e 

As seen the intersect/ equal to one another at x = -2 and x = 0

 

Hope that helps! 

 

Julius 

 
Julius  Jan 9, 2018
 #2
avatar+80978 
+2

f(x)  = 0.5x            g(x)  =  -0.5x  +  1

 

These intersect  when   x  =  0    and  x  = 1

 

Here's a graph :

 

https://www.desmos.com/calculator/vebndl11ur

 

 

 

cool cool cool 

 
CPhill  Jan 9, 2018
 #3
avatar+506 
+2

Ooops my bad! Thanks CPhill!

 
Julius  Jan 9, 2018
 #4
avatar
0

Really need help on number three please? Thank you both

 
Guest Jan 9, 2018
edited by Guest  Jan 9, 2018
 #5
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0

and also, I messed up on the first question, its 2not 2x 

 
Guest Jan 9, 2018
 #6
avatar+80978 
+1

First one

 

f(x)  =  2x  +  1     g(x)  =  -x + 4

 

If x  =  1.....then  y  =  3     so   (1,3)  is a solution

 

Here' the graph  :  https://www.desmos.com/calculator/kn7b69wttw  

 

 

Julius has answered the last one.....see his graph....

 

 

cool cool cool

 
CPhill  Jan 10, 2018

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