What is the common point between lines y = -x + 7 and y = 3x + 10?

(5, 9)

(1/2, 3/4)

(-3/4, 31/4)

(9, 27)

Question

What is the common point between lines y = -x + 7 and y = 3x + 10?
		
(5, 9)
		
   (1/2, 3/4)
		
 (-3/4, 31/4)
		
(9, 27)

anonymous · Answer

hmm this seems a little confusing hold on let me see

anonymous · Answer

I am not sure about this one, but I think it is b or d srry :) if you have any other questions please be free to ask bye

anonymous · Answer

Thnxx

anonymous · Answer

np medal and fan please :) trying to get points up

anonymous · Answer

The common point here is the intersection between the two linear lines.
This is where they will cross on the graph, but also, where you can substitute in (x, y) in to the the x and y in both equations and it be true.

Go ahead and start with A. and plug in 5 as x and 9 as y into the equations and evaluate them and see if it is true.