how to find three solutions for this linear function G(x) in G(x) = 3x - 2 is and and how to plot the correct linear function?

Question

 how to choose the correct the correct linear function?

 

                                              h

Answer 1

To find 3 solutions for G(x) = 3x - 2 you simply pick 3 values for x and use them to evaluate G(x).  You can pick any values you like, so try finding some that make G(x) easy to evaluate.  For example,  

 

if x = 0 then G(0) = 3*0 - 2 = 0 - 2 = -2

if x = 1 then G(1) = 3*1 - 2 = 3 - 2 =  1

if x = 2 then G(2) = 3*2 - 2 = 6 - 2 =  4  

 

This gives you 3 ordered pairs [(0,-2), (1,1) and (2,4)] that you can plot on the graph and draw a straight line through.