Question

show that each pair is a solution of the equation
2y+x=5;(-1,3) (7,-1)

Answer 1

just put values of x & y in your equation and verify that your statement is still true

Answer 2

i dnt understand were to put them

Answer 3

In an ordered pair (-1,3) the first number is the x and the second is the y (x,y)

so you put -1 in for x and 3 in for y

2(3) + (-1) = 5
6 + (-1) = 5
5 = 5 so that point (-1,3) is on the line 2x + y = 5

now try the next point and I will check you out.

Answer 4

2(7)+-1=5 did i write that right

Answer 5

OK.. the point is (7,-1) so x = 7 and y = -1

your equation is 2y + x = 5 make sure you put in x = 7 and y = -1

Answer 6

so this isnt a coordinate

Answer 7

2(-1) + 7 = 5
-2 + 7 = 5
5 = 5

so (7,-1) is also on that line... it is a solution.

Answer 8

yes... it is a coordinate.. but you put the x value of 7 into the y variable
and you put the y value of -1 into the x variable. that is the mistake you made.

Answer 9

i put them in the wrong place

Answer 10

Yes.

Answer 11

i got what ur saying so it would always be in the order when i fill in xand y