Which is the best approximate solution of the system of linear equations #y=1.5x-1# and y=1?

Question

9120 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-01-22T15:50:09

In the question they use the word approximate. This implies they are expecting you to draw the graph and read the answer off from it.

The exact answer is #x=4/3 and y= 1#

For there to be a solution #y=1# is a common point. So by substitution we have:

#y=1.5x-1 " "->" " 1=1.5x-1#

#1.5x=2#

#x=2/1.5 = 4/3#

So the solution for this is point p #->P_("("x","1")")->(x,y)=(4/3,1)#

Tony B